Category: Blog

Page 3/102

Newsbiomedicalmaterialsprogram is a professional news and article media center for new materials, nano materials, chemical company, machinery, digital products, indusitrial products and more. Newsbiomedicalmaterialsprogram has a professional editorial and researching team that provides qualified and authentic content on the internet. We also have laboratory and R&D resources for advanced Nano material / New material research and experiment. Our topics: nanoparticles, graphite powder, boron powder , zinc sulfide , nitride powder, Molybdenum disulfide,silicon powder,max phases powder, quartz powder, 3D printing metal powder, and so on.

Blog

What is the role and mechanism of water

We often see concrete used on construction sites and in home improvement. However, you may not know that adding a water-reducing agent to concrete is a very important step. So, why do we need to add a water-reducing agent to concrete, and what is the function and mechanism of this additive? Next, we will reveal the answers for you.

First of all, let us understand what is water water-reducing agent.

Water reducing agent is a chemical additive, and the main component is a surfactant. It can greatly reduce the amount of water required for concrete, thus improving the strength and durability of concrete. Using this additive can save the amount of cement, reduce the cost of concrete, and improve the quality of construction.

So, what's the purpose and function of the water-reducing agents?

Particularly, they include the following elements:

1. The effect of surfactants on water is reducing The surfactant that is contained in this water reducing ingredient may be applied to the surface of cement particles, causing them to become more dispersed, thereby reducing the demand for water in the concrete.

2. Dispersing effect Water-reducing agents will make the water within the concrete spread more uniformly, which can prevent the possibility of drying locally and settling.

3. Reduced water-water absorption: These agents reduce the amount of pores present in concrete, thereby improving its permeability and endurance.

The development history of water-reducing agents:

1. The first generation of water-reducing agent

Ordinary water reducing agent (water reduction rate 8%), also known as plasticizer; the main representative of the lignosulfonate system (sodium lignosulfonate, calcium lignosulfonate, magnesium lignosulfonate, etc.).

2. The second generation of water-reducing agent

High-efficiency water-reducing agent (water reduction rate 14%), also known as superplasticizer; the main representative of the naphthalene system, melamine system, amino sulfonate system, and aliphatic system.

3 .Third generation water reducing agent

High-performance water-reducing agent (water reduction rate 25%); the main representative of polycarboxylic acid water-reducing agent, which can be divided into early-strength type, standard type, and slow-setting type.

In short water-reducing agent play an important role in concrete. It will not only increase the durability and strength of concrete, but also reduce concrete needed and cut costs. This is why water-reducing agents are an essential chemical ingredient in construction.

Blog

Black technology products in the building material

The building materials industry is embracing black technology to reveal the hidden costs of road building.

In the road construction industry and other engineering constructions, it is necessary to cure the foundation. The traditional hardened cement foundations can be very expensive, but they are also easy for cracking. Soil curing agents, a black-science and technology product used in road construction materials, are the first choice of investment for low carbon environmental protection building material.

Through mixing and compacting, soil curing agents can be added to soils, which will make them cohesion-curing instead of cement. This reduces the cost and saves resources. The compressive and density strength of cured earth are significantly improved. This makes the soil roadbed more durable and cost-effective.

1. Role of soil stabilisers

The purpose of a soil cure agent is to alter the chemical and physical properties of the soil, making it more solid and stable. This will improve the road's bearing capacity and durability.

The application of soil curing agent is extremely wide. They can be used for road and transportation construction, such as highways or railroads. The agent can be applied to pave roads, repair road bases and increase the bearing capacity. Additionally, soil curing chemicals can be used for land remediation and restoration to improve soil conditions and the environment.

2. The advantages of soil cure agent

Soil curing agent is made with eco-friendly and low-carbon construction technology. The primary ingredient of the product is a polymer. It is more eco-friendly and will not pollute soil or the environment than other soil curing materials. It is eco-friendly and offers many benefits. First, it allows for the rapid development of roads. Second, the cured dirt will increase bearing capacity. The soil curing agents will also help to reduce the amount of potholes on the surface of the road, as well as subsidence. They can also increase the life expectancy and lower maintenance costs.

3. Construction simple and easy to use

The use of soil-curing agent is simple in certain applications. It can be completely mixed with soil before construction. To achieve the best cure, you can adjust the amount and ratio of the soil curing agent during construction. After construction, the curing agents will play their role and you will have a solid and durable road surface.

Since the development of low-carbon green construction materials, people have been gradually favoring cement replacement products. It is possible to use soil curing agents for many applications. For example, they can be used as a road construction material or soft base treatment.

Blog

What is EBS Ethylene Bis Stearamide

What Emulsion is?

Ethylene bis stearamide Ethylene-bis-tyramide is an organic chemical. In the last few decades, the compound has been widely used in the plastics industry. It's mainly used to increase the smoothness of surfaces and the anti-friction qualities. This article will discuss in detail a range of Ethylene Bis Stearamide elements.

EBS ethylene-bis-ceramide is a high melting point of synthetic wax; the two polar bonds maintain a high degree of equilibrium; its inherent structure plays a unique compatibility and solubility and can be used as most of the thermosetting, thermoplastic plastic lubricants, and external lubricants, is a good pigment dispersant, can make the operation go smoothly, and to improve the quality of the final product.

What is Ethylenebis Stearamide

Ethylene Bis Stearamide (EBS) is a plastic lubricant that was invented in recent years. It is used extensively in the manufacture and production of PVC products ABS and polystyrene rubber with high impact, polyolefins as well as other products. It allows for plastic molding. It increases the flow of molten plastic during processing and makes it easier to demold. It also reduces energy usage and improves the quality of the surface finish. This property is relevant in particular to plastic shells used for household instruments and appliances as well as engineering plastics. Combining lubricants with other greases can have a significant synergistic affect. Disperse components such as colorants and fillers into plastics.

Structure and properties of EBS ethylenebisstearamide

Ethylenebis Stearamide has a yellowish, white or gray powder or granule with the molecular form C38H74N2O2 along with a weight molecular of 611.07. The structure of the compound is composed of two amides that are joined by two stearic groups. The amide groups have a powerful polarity and are lubricious. This makes ethylene bis stearate an excellent material to use for compatibility.

EBS Ethylene Bis Stearamide is a material with a melting point of 140-150degC. It flows well in its molten condition. The viscosity and melting point of this substance are dependent on the temperature. Ethylene Bis Stearamide also has good chemical and thermal stability, and it is not easily broken down at temperatures that are normal for plastics processing.

EBS Ethylene Bis Stearamide Production Method

There are two major production methods currently available for ethylene bis, or ceramide: the first is to amidate stearic and ammonia; and the second is to amidate stearic and ethylenediamine. Comparing the two methods, the second has mild reactions, and a stable quality. This is why the industrial production uses it extensively.

EBS Ethylene Bis Stearamide Applications

The activator is suitable for plastics, synthetic resins, and other materials. Mold release agent. Pigment dispersant. Anti-adhesion agent. Lubricants. Agents that enhance the gloss or surface of rubber, as well activators. Paint. Additives for ink, etc.

It is a grease. EBS offers excellent mold release and external and internal lubrication. It reduces processing energy and increases durability. It can be used to produce PVC resins as well as PP, ABS and PE.

EBS, a dispersant suitable for plastics, is commonly used in PVC products. ABS and PS high-impact are also popular. EBS works well with other lubricants and has a powerful synergistic impact. In the rubber industry, it is used as a mold-removal agent and anti-adhesion. It can also be used to treat surfaces.

It's a great lubricant . Ethylene Bis Stearamide is used extensively in the production of plastic products. Addition of this material to plastics can improve the surface finish, the smoothness of the surface and the anti-friction qualities of the materials.

PVC Products Ethylene Bis Stearate Amido is a lubricant that's used in PVC. It can be used to improve the fluidity of PVC particle, reduce adhesion and friction as well as improve the quality of surface of the product.

ABS Products Ethylene Bis Stearamide is a fluid that can be used as both an external and interior fluid. This fluid can reduce friction coefficients, improve mechanical properties, and enhance the surface of the ABS product.

Products made from polyolefin Ethylene bis Ceramide could be used to lubricate polyolefins. It would improve their anti-friction, processing, and wear properties.

Engineered plastics In engineering plastics, ethylene bis-stearamide can be added to increase processing efficiency as well as physical properties.

Ethylene Bis Stearamide, in addition to its use in plastics can be used as an additive in coatings, inks and other substances with high lubricity, anti-adhesive qualities, which improves the physical properties and processing of the materials.

Ethylene bis Stearamide - The latest development

Ethylenebis Stearamide's demand increases every year, due to the rapid expansion of the plastics sector and the advancement in quality standards. The future research and development of Ethylenebis Stearamide will focus on the following aspects:

The development of new manufacturing methods: Researchers will continue to explore innovative production methods to improve product quality and reduce production costs.

Multifunctional additives are being developed in the near-future: The stearic acids amide made with ethylene is not a single lubricant, but it will be designed as a multifunctional and versatile lubricant. The performance and flexibility of the ethylene bisstearamide compound can be improved by combining it with other additives.

Environmental protection, sustainability and Ethylene Bis Stearamide With the increasing awareness of the need to protect the environment as well as the development of sustainable solutions, environmental protection and sustainable Ethylene Bis Stearamide use are likely to be the main focus in future research. For example, studies on how to minimize waste and pollution emissions during the manufacturing process of EDSA as well as how to reuse or recycle materials made from EDSA.

The plastics industry is constantly evolving and advancing, which has led to the development of new technologies. ethylene bis-ceramide The future of development will be dominated by, a vital additive, lubricant and fuel.

EBS Emulsion Ethylene Bis Stearamide Supplier can be contacted for more information.

Blog

The Preparation and Application of Titanium Diboride Powder

Titanium diboride powder The hexagonal (AlB2) structure of the crystals is grayish-black. The melting temperature of titanium diboride (2980degC) is high, and it also has a very hard surface. It is stable to HCl, HF and anti-oxidation temperatures. Titanium Diboride is used primarily to prepare composite ceramics. Due to its ability to resist corrosion, titanium diboride may be used for the production of electrolytic cell electrodes and molten metallic crucibles.

The Preparation Of Titanium Diboride

There are many methods that can be used to prepare titanium diboride. These include the carbothermic method of reduction, the self-propagating method at high temperature, mechanochemical method of reaction, the vapor deposition technique, and ball milling.
1.Carbothermal Reduction Method
The quality of the titanium diboride powder synthesized depends on the powder purity. This is achieved by using titanium and boron oxids as raw materials. Carbon black is used as a reducing agent. This process is widely used in industrial production. The powder obtained from this process has large particles and is high in impurities.

Self-propagating High-Temperature Synthesis (SHS)
In general, this method is to compress the raw material mixture that will be reacted and ignite one end of the resulting block. The reaction releases a huge amount of heat, which causes adjacent materials to react. Eventually a combustion waves spreading at speed v forms. As the combustion waves advance, the raw materials are transformed into the finished product. The self-propagating, high-temperature method can be combined with special technical means to produce a dense material of titanium diboride.

3. Method of mechanical reaction (MR).
The powder reactant is squished and shredded by the ball milling medium, resulting in the breaking of the powder. The ball milling medium generates chemical energy through the violent friction. Comparing the two first methods of preparing titanium dioxide, the mechanochemical reactions method has advantages such as low synthesis temperatures, a wide range of raw material sources, and low costs.

The Application of Titanium Diboride

Titanium diboride can be mixed with ceramic polymers and other metals to create new materials that have commercial applications.

1.Titanium boride can serve as an additive for grain refinement or particle strengthening. It can be used to enhance the mechanical and physic properties of materials based on aluminum, copper and titanium-aluminum alloys.

It is possible to combine titanium diboride and non-oxide ceramic materials, such as silicon carbide, aluminum nitride or boron carbide. Or, it can be combined with oxide ceramics, such as alumina.

PTC head-type materials and PTC heating ceramics can be created by mixing titanium diboride powder with high performance resin. They have many advantages, such as safety, reliability, efficiency and easy processing. These include electric irons (and blankets), electric ovens (and air conditioners), and electric blankets. This is a key high-tech to upgrade household appliances like hot-air heaters.

It has an excellent electrical conductivity, and is resistant to corrosion caused by molten metallic materials. It is used for evaporators as well as aluminum electrolytic cells cathodes, electrodes, contact heads, and molten-metal crucibles.

5. Using titanium diboride for the cathode of an aluminum electrolytic battery can reduce its power consumption and extend the life span of the cell.

6. Titanium diboride may be used in the manufacture of ceramic tools and molds. It is used for the manufacture of finishing tools, wire-drawing dies extrusion dies sandblasting components etc.

Tech Co., Ltd. is a professional titanium diboride powder Over 12 years in research and development of chemical products. You can contact us for high-quality Titanium Diboride Powder. Contact us Send an inquiry.

Blog

What is amorphous boron and its applications?

Amorphous boron Amorphous boron This is a form boron. The elemental boron occurs rarely in nature as its pure form, but as orthoboric or borate. Boron's energy gap of 1,50 to 1,556eV is greater than that of silicon or germanium. It transmits parts of infrared. At room temperature, boron is not as good a conductor of electricity. Boron is available in crystalline boron or amorphous form. Boron is odorless and tasteless. Amorphous Boron is a brownish powder. Crystalline boron, on the other hand, is black in color and is extremely hard. (roughly 9.5 Mohs' Scale) It is also a poor conductor when at room temperatures. boron lies between the non-metal and metal series in the periodic table. Boron's chemical properties are active due to many of its characteristics. These include a strong electronegative charge, low atomic size, and a centralized nuclear charging. Similarly, boron's non-metal property is that of silicon. At high temperature, boron may react with sulfur, oxygen, nitrogen or halogen. Boron remains stable at room temperature. However, it becomes oxidized and then burns when heated up to 300°C. Boron is easily combined with many different metals in order to produce metal boride. High purity boron can be crystalline. The boron trichloride and tribromide can be reduced to crystalline boron by heating filaments with hydrogen in the vapor phase.

Boron (B) Metal Powder Info

Boron
Chemical Formula: B
Amorphous Boron & Crystalline Boron

Physical Properties
Fine Powder 0.5-0.8 Micron
Crystalline Boron is available in granules, powder and filaments. Crystalline fine Powder available up to -325 mesh.

Chemical Properties
Amorphous Boron : 90-92% et 95-97%
Crystalline Boron (99%, 99.5%), 99.9+% (99.995%), and 99.9995%

Synonyms
Boracium, bore boro, metallic, boron boron boron amorphous, boron boron boron boron boron boron boron boron boron boron boro boron boron boron boron boron boron boron boron boron borom boron boron boron boron boron boron boron boron boron

Boron (B) Metal Powder CAS Number: CAS# 7440-42-8

What is the purpose of amorphous boran?
  • The amorphous boron used in flares is a rocket fuel ignition. It gives flares their distinctive green colour. Boric acid, sodium borate and boric oxid are the three most important compounds of Boron. You can find them in eye drops and mild antiseptics.
  • Oxygen-scavenger, rocket propellant mixtures (pyrotechnics), refractory addition, cementation of special-purpose alloys and iron, neutron-absorbing additive in nuclear reactor controls.
  • Elemental Boron is used in the semiconductor industry as a dopant. Meanwhile, boron compounds have important roles to play as lightweight structural materials. They also serve as insecticides, preservation agents, and chemical reagents.
  • Boron (amorphous Powder) was used as a boron sources to synthesize hexagonal boran nitride, boron doped diamond (BDD), or europium-doped nanotubes.
  • A recent study reports on the structure and transport properties for long in situ MgB2/Fe Wires. These wires are prepared with , amorphous Boros, and nano amorphous Boros powders. The powder-in-tube (PIT), standard method is used to fabricate the wire samples. Transport measurements are performed in Bitter magnets with high magnetic fields of up to nine T. Researchers have found that a mixture of amorphous boron powder and amorphous micro boron powder in equal amounts can be used to produce long wires with no degradation of transport engineering Jce in low and medium magnetic fields.

(aka. Technology Co. Ltd. has over 12 years experience as a supplier & manufacturer of high-quality chemical materials and nanomaterials. The Amorphous Boron Please note that the products produced by our company are of high purity and have low impurity content. Please. Contact us if necessary.

Blog

Micro-porous PVC-SiO2 Separator for Gelled Lead-acid Battery

PVC and SiO2 Separators PVC separators that are made by wet processing are mostly used in lead-acid sealed gel batteries. PVC-SiO2 Separators have higher porosity and more uniform pore sizes than sintered PVC Separators, as well as better puncture and compressive resistance, greater toughness and better compression strength than glass fibre separators. It has better chemical stability and oxidation resistance than polyethylene PE.

PVC and SiO2 Separator Properties:

1. The PVC/SiO2 separator is characterized by high porosity, a small maximum pore, and high liquid absorption. These characteristics allow the separator to retain the electrolyte easily, and have a rapid penetration rate.
2. The wet elastic is strong and can provide electrolyte to the plate while keeping the ion conductivity unblocked.

3. The "acid-strategization" phenomenon can be effectively prevented by a battery with strong liquid transfer abilities.

4. Based on the glass fiber. By adding organic fibers, the PVC/SiO2 separation is enhanced in terms of tensile strength and other performance indicators.

Application of the PVC-SiO2 separation in batteries:

1. The positive and the negative plates are placed close to each other, but should not be in direct contact. A separator between the plates is used. The PVC-SiO2 should be porous to allow electrolyte into the separator, and have good acid resistance and alkali tolerance. Wood, microporous Rubber, Microporous Plastic, and Resin-impregnated Paper are all good materials for separation.

2. The battery separator is responsible for carrying the electrolyte containing sulfuric acid in the cell. In the lean state, the separator shares the entire amount of sulfuric acid needed to meet the rated battery capacity with the electrode plate. For this to work, the separator needs to be large enough to absorb the sulfuric acids. Also, the battery must have enough space to accommodate the separator.

3. The PVC-SiO2 separation should provide sufficient oxygen channels to allow the oxygen that precipitates from the positive plate to pass through it to the negative, where it can be converted into oxygen. cycle. The separator must have a reasonably microporous surface, and the acid saturation of the separator must be determined at the time the battery is being designed.

4. The separator is used in lead-acid batteries with valve regulation to prevent the active material from falling off of the electrode plates and to keep the electrode plates from deforming. This prolongs the service life. It is necessary that the separator shrinks after being injected with sulfuric acid.

5. The internal resistance of a battery includes the resistance of a battery separator as well as the resistance that is formed when the separator contacts the plate. It is necessary that the separator has a low resistance and also be put under greater pressure when designing the battery. So, the PVC/SiO2 separation is in contact with the poleplate, and resistance is reduced at this point.

Tech Co., Ltd. is a professional PVC-SiO2 Separator With over 12 year experience in chemical product research and development. We accept payments by Credit Card, T/T (wire transfer), West Union, Paypal, and T/T. The goods will be shipped to overseas customers via FedEx or DHL.

You can contact us for a high-quality PVC/SiO2 separator. Contact us Send an inquiry.

Blog

The Characteristics and Application of Quartz Powder

What exactly is quartz powder? It's also called silicon fine powder. Quartz powder is a hard mineral that is known for its chemical stability and hardness. The quartz sand color is white or translucent. It has a hardness of 7, it's brittle and hard with shell-shaped fractures, a glossy oil finish, a chemistry that shows obvious heterogeneity. The product of the quartz mine is referred to by the term below 120 mesh. Quartz powder has more than 120 different products as their destination.
What are the uses of quartz powder?
Quartz is one the most important minerals on the surface of the Earth. Quartz Powder has many uses in industry.

Rich quartz sand used in glass making. Quartz sand plays a key role in the production of instrumentation, flat-sheet, specialty, and fiberglass glass. Quartz can also be used to produce lenses for optical instruments such as telescopes and microscopes. It is also used in prisms, sensors and electronic and scientific instruments.

Quartz Powder as an Abrasive. Because of its high hardness, which is seven on the Mohs scaling, quartz powder is more durable and effective than many other natural substances. Quartz powders and finely ground oxides have many uses, including sandblasting media, scouring cleanser, grinding media, grit, and sanding for sawing and sanding.

Quartz Powder used in the Slab Industry. Quartz Grains and powder are also used to produce artificial marble slabs. Since the very beginning, we are producing the highest-quality products for this industry.

Other Uses for Quartz Powder: You can use quartz powder as a filler when making rubber, putty, or paint. The sized and screened quartz grains can be used for roofing granules or as filter media. Quartz Powder is used to provide traction in the railroad and mining industry. These sands can be found on beaches, golf course sandboxes and volleyball courts.

Quantum Powder for Investigation of the Properties of Engineered Cementitious Composites Reinforced by Fibers
ECC mixes are more workable when they contain quartz powder and silica dust. These materials can absorb water. Water absorption is lower for cement and quartz than silica. Silica fume, however, has a specific area of between 15,000-30,000m2/kg. The use of water is constant in all ECC mixtures. In essence, these conditions may be the cause of the poor workability of ECC mixes. However, by adjusting superplasticizer content (SP) for each mix, a good consistency and working ability of ECC mixes can be achieved.

In the case of PVA fiber-based ECCs, adding quartz powder can improve the average compressive force of 6.85% or average strength ratio of 1,0685 compared to PVA fiber-based samples with no quartz powder. The addition of quartz to steel fibers based ECC can improve the average compressive strengths of 8.09% and the average strength ratios of 1.0809, compared with the steel fibres based ECC samples that do not contain quartz powder. The addition of the quartz powder to the steel fibers and PVA ECC samples led to higher compressive strengths with an average strength of 1.0747 when compared to samples of FR ECC without quartz.
(aka. Technology Co. Ltd., a global chemical material manufacturer and supplier with more than 12 years of experience, is a trusted source for super-high-quality chemicals. Currently, we have developed a number of materials. Quartz Powder is produced by our company with a high level of purity, a fine particle size, and low impurity content. Click the desired product to Send an inquiry.






Blog

Properties and Applications of Quartz Powder

What is quartz?

Quartz powder is also known by the name silica. Quartz sand has a high chemical stability and is hard. Its main component is SiO2. The quartz sand color is translucent or milky white. Hardness 7; brittle with no cleavage. Shape fracture, grease-luster, density of 2,65, bulk density (20 to 200 mesh is 1,5), chemical, mechanical, and thermal properties are clearly anisotropic, it's insoluble in acids, but slightly soluble in KOH solutions, melting point 1650. Quartz sand is the result of processing the quartz stone from the mine. It has a mesh size less than 120. The products with a mesh greater than 120 are known as quartz powder.

Use of quartz powder

Mineral fillers such as non-metallic minerals are used in modern polymer products like plastics, rubber and coatings. Addition of non-metallic minerals, such as the quartz powder, to the polymer material base can reduce costs, but also improve performance and dimensional stabilty, while giving the material special chemical and physical characteristics. Compression resistance, impact and corrosion resistance, fire retardancy, insulation etc.

KMPASS, etc. SlEC, a high-pressure epoxy molding material with good weather resistance and excellent electrical properties was developed using silicon micropowder. It is the best material to use for high voltage insulators and switches. KMPASS et al. Quartz powder was added to the patent of flame-retardant coatings in order to improve their thixotropic qualities. The coating features uniform coating, no cracked, quick curing, and low costs. Liu You and other researchers added quartz to epoxy resin in order to develop an epoxy coating that is non-toxic and has anti-corrosion properties. It overcomes existing coating's shortcomings when it comes to brushing or spraying. KMPASS, etc. In the patented electronic insulation sealing film prepared by using butyl as the base material, adding silicon powder to it, the film has high strength insulation, is waterproof, resistant to heat, cold, chemical corrosion, ageing resistance, good plasticity and insulation. Good characteristics. Ideal for the insulation and sealing of wire busbars of various electrical appliances and exposed joints.


(aka. Technology Co. Ltd., a trusted global chemical materials supplier & manufacture with more than 12 years experience in providing high quality nanomaterials and chemicals. Quartz powder manufactured by our company is of high purity and has a low impurity level. If you require lower, please contact our company.

Blog

Luaug Mineral and LuAG

Luaug mineral is a well-known and promising host for ionization radiation based scintillators in various applications, ranging from radiation monitoring to computer tomography [1]. The crystallographic properties of LuAG host are superior to those of YAG, which makes this material attractive for the creation of composite scintillators with a-particles and g-rays detection. The LPE grown LuAG:Pr SCFs/ and LuAG:Sc SC epitaxial structures were characterized in terms of their absorption, cathodoluminescence (CL) and scintillation light yield (LY) under a-particles and g-ray excitation.

The absorption spectra of the two LuAG:Pr SCF/LuAG:Sc SC samples grow on different YAG substrates reveal the existence of a wide low-intensive absorption band peaked in 260-262 nm, which corresponds to the allowed 4f-5d1,2 transitions of Pb2+ flux impurity in these SCFs. The other absorption bands observed in the spectra are most probably caused by re-absorption of UV emission of Sc3+ ions.

The LY maxima of both LuAG:Sc SC samples, measured with shaping times of 0.5-10 ms, were in the range 1735 and 1457 ph/MeV. The energy resolution of the two samples, measured with a-particles registration and g-ray excitation of 662 keV 137Cs, shows opposite dependency on the LY/shaping time dependence and lies in 13.2-30.4% and 14.4-32.3% ranges, respectively. The variations of LYa and LYg values as well as ta/tg and tg/ta ratios for both samples were found to be small. The sensitivity of LuAG:Pr SCF/LuAG:ScSC to g-rays was comparable with that of YAG:Tb SC under similar conditions.

Blog

The Property And Application of Bismuth Telluride

What property does Bismuth Telluride have?

Bismuth telluride The molecular formula for this powder is Bi2Te3. Bismuth telluride, an indirect band gap semiconductor, has a bandgap of 0.145eV at room temperature, electron mobility of 0.135m2/(V*s) and hole mobility of 4.x10-2m2/ (V*s), and a coefficient of thermoelectric quality of 1.6x10-3/K.
Bismuth Telluride is a dense material with a density 7.8587g/cm3 at a melting temperature of 585degC. It is bound with covalent and has an ionic bond. Bismuth telluride exhibits the characteristics of a topological insulate, allowing electrons flow freely over its surface.

The Bridgman method is one of the preparation methods for bismuth Telluride. Other methods include zone smelting and Czochralski. Bismuth telluride, a semiconductor, has a good electrical conductivity and mediocre thermal conductivity.

What is the use of Bismuth telluride?

Bismuth-telluride-based semiconductors have high performance thermoelectric conversion in the low- and mid-temperature range. These materials are widely used to control temperature and for local refrigeration in microelectronics. The applications of these devices are excellent in thermoelectric power generation and industrial waste heat recovery.

Through alloying, phonons scattering can improve to reduce thermal conductivity and carrier concentration to optimize the electrical performance. This will enhance the thermoelectric performance.

The dangers of bismuth-telluride are low but it can be fatal in large doses. The material is able to allow electrons on its surface to move at room temperatures without consuming energy, which can lead a significant increase in the speed.

Tech Co., Ltd. is a professional Bismuth Telluride We have over 12 year experience in research and development of chemical products. You can contact us for high quality Bismuth Telluride. Contact us Send an inquiry.