Tag: Tantalum carbide

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    Tantalum Carbide ceramic is a ceramic that contains a seven-crystal phase of Tantalum Carbide

    What is Tantalum carbide? Tantalum carbide (TaC), a binary compound containing Tantalum and Carbon, has the empirical formula TaCX. The range for X is typically between 0.4-1. Metal-conductive ceramics that are extremely hard and brittle. They are brownish gray powders that are normally sintered.
    Tantalum Carbide can be found in many cutting tools, and it is often added to tungsten Carbide.
    Tantalum carbide ceramics contain seven-crystal phases of Tantalum carbide. The chemical formula of TaC, face centered cubic lattice. The melting point of Tantalum Carbide is around 3880 degrees Celsius, depending on the purity of the material and the measurement conditions. This value is highest among binary compound. Hafnium carburide is the only binary compound with a higher melting temperature, around 3942 deg C.

    TaCX Powders of the required component are prepared by heating tantalum and a graphite powder mixture in a vacuum (argon) or in an atmosphere of inert gases. The heating at 2000degC can be done using an arc melter or furnace. In a vacuum or hydrogen-filled atmosphere, tantalum is reduced with carbon by reducing it in 1500-1700degC. Tantalum Carbide, a product of this method, was first produced in 1876. But the lack stoichiometric measurement of the final product caused the production to be reported as a direct TaC by high-temperature self-spreading.
    The complex mix of metals, ions and covalent contributions is what forms the bond between tantalum atoms and carbon atoms. The strong covalent structure of these carbides makes them very hard and fragile. TaC for example has a hardness between 160 and 2000 kg/mm2[16]( 9mohs), and an elastic module of 285 GPa. The corresponding values are 110 kg/mm2[16] for tantalum and 186 GPa.
    Tantalum Carbide is electrically conductive to metals, both size and temperature-dependent.TaC is a kind of superconductor with high transition temperature Tc = 10.35 K.
    What is the strength level of tantalum carbide?
    Tests of Vickers Hardness, Fracture Toughness, and Relative Density of a sample series confirm that TaC possesses best mechanical properties when tested under 5.5 GPa at 1300 degC. TaC has a relative density of 97.7%. It also has a fracture toughness and Vickers Hardness of 7.4 MPa m1/2, as well as 21.0 GPa.

    What are the uses of tantalum carburide?
    Tantalum carbide is stable chemically and insoluble with acids. TaC's antioxidant properties are strong. TaC is synthesized in an inert, reductive or inert atmosphere from tantalum hexoxide and black carbon as a brass-like powder. The products with a high density and metallic shine can be produced by hot pressing. Additives for aerospace materials. Tantalum carbide is an metallic powder with cubic crystals of sodium chloride. It's a brownish-light powder. It is insoluble with water and inorganic acids. However, it can be dissolved by a mixture of hydrofluoric, and nitric, acid. It is easily decomposed and melted with potassium pyrosulfate. Electrical conductivity is high, and the resistance is 30O at room temperature, indicating superconductivity.
    What are the uses of tantalum carburide? Tantalum carbide has excellent physical properties. It is used in ultra high temperature ceramics or in high entropy alloys as a ceramic reinforcement.
    Tantalum carbide can be added to powder metals, cutting tools and fine ceramics. It's also used in chemical vapor deposition for hard-wear alloys, tools, molds, and wear resistant structural parts. Titanium Carbide is available in golden yellow sintered form and can also be used for watch ornaments. Tantalum Carbide is also used as a grain growth inhibitor in sintered cemented Carbide.

    Is tantalum carbide toxic?
    Tantalum Compounds. The systemic toxicities of tantalum oxid, as well metallic tantalum are low. This is due to its poor soluble. Carbides : Pure carbon is very low in toxicity for humans. It can be safely handled, and even ingested as graphite or charcoal.
    Poseidon is a deep-sea unmanned submersible
    According to the journal Scientific Reports, a team of researchers at Imperial College London determined that the melting points of Tantalum Carbide at 8:2 are 3768 deg C (for the ceramic) and hafnium Carbide at 3958 deg C (for the metal).
    Tantrum Carbide (also known as hafnium Carbide) and hafnium Carbide resist high temperatures better than all other materials. They protect the spacecraft against the extreme heat during exit or reentry.
    Omar Sediroth Baraza, a researcher, said that future supersonic flights could use Tantalum Carbide (or hafnium Carbide) for the nose cap, scientific equipment, and other components of the spacecraft. It could also make supersonic aircraft shells, which could fly from London and Sydney in only 50 minutes.

    Tantalum Carbide Supplier
    (aka. Technology Co. Ltd., a global chemical materials supplier and manufacturer with more than 12 years of experience in providing high-quality Nanomaterials and chemicals. Currently, we have developed a number of materials. The Tantalum Carbide The products produced by our company are of high purity and have low impurity levels. To get the latest, Prices of Tantalum Carbide Click on the desired product to send an enquiry.


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    What is Tungsten Disulfide Powder?

    What is it? Tungsten Disulfide Powder ? Tungsten dioxide is an organic compound that has a molecular structure of WS2 as well as a molecularweight of 247.97. It is a fine powder or crystal with a gray metallic appearance. It belongs in the hexagonal system of crystals. Tungstenite is a natural mineral. This layer structure is simple to dissociate with similar lubricating qualities to graphite. Useful as a Lubricant in Aerosols.
    Tungsten Disulfide Powder: The Main Features
    Tungsten dioxide is a compound made of tungsten, sulfur and has a chemical formula WS2 as well as a molecular mass of 247.97. It is a black-gray, powder. It looks like tungstenite in the natural world and is a dark gray crystalline solid. The relative density is 7.10. The relative density is 7.510. It is insoluble in hydrochloric acids and alkali, except for the mixture of concentrated hydrofluoric acid with nitric acid. Soluble in molten alkali, insoluble in alcohol. Density 7.6g*cm-3. It has a reducibility, which allows it to react with hot concentrated sulfic acid, nitric and other strong oxygenants. [1] It decomposes to tungsten and sulfur when heated to 1250 under vacuum. To eliminate excess sulfur, the mixture is co-heated to 900 degC in a dry stream.
    Tungsten Sulfide Properties
    Other Titles tungsten sulfide (WS2), tungsten disulphide,
    tungsten(IV) sulfide, WS2 powder
    No. 12138-09-9
    Combination Formula WS2
    Molecular Weight 247.97
    Appearance Gray to Black Powder
    Melting Point 1250 degC
    Boiling Point N/A
    Density 7.5 g/cm3
    Solubility of H2O N/A
    Exact Mass 247.895074
    Tungsten Disulfide WS2 Powder CAS 12138-09-9
    Tungsten Disulfide Pulver's applications
    Useful as a lubricant. Higher performance than molybdenum sulfide, lower friction coefficient, and higher compressive strengths. It is best used in conjunction with other lubricants for high temperatures, high pressure, high speeds, high loads, and equipment that runs in chemically active media. Combining other materials with forging and stamping oils can extend the life of the die, and increase the quality of the finished product. Filler material formulated with polytetrafluoroethylene and nylon for self-lubricating parts.
    The supplier Tungsten Disulfide Powder
    Tech Co., Ltd. () is a professional sulfide powder Over 12 years' experience in chemical products development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
    You can find high-quality powdered boron carbide here Please contact us Send an inquiry

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