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Boron Nitride is an excellent dielectric at high temperatures. It is an excellent heat dissipation and high temperature insulating material. Boron Nitride is chemically stable, and it can resist erosion by most molten metallic materials. It has also good self-lubricating characteristics.
Boron nitride ceramics (BN) is a novel industrial material that has been developed by the aerospace and electronic industries. It can be used in a wide variety of industries and production.
Research on boron Nitride is currently focused primarily on the hexagonal phase of boron Nitride (hBN) and its cubic phase (cBN). Hexagonal Borosidria has good performance at high temperature, thermal conductivity as well as lubricity. Recent studies show that the hexagonal state is in a thermodynamic equilibrium stable at room pressure and temperature. It is still used in the production of cubic boron-nitride as a main raw material. Cubic Boron Nitride is a synthetic material with many application possibilities.
As a rule, hexagonal boron-nitride is used in the high temperature/high pressure method. The excellent properties of cubic boran nitride have attracted many scientists to research the synthesis of cubic boran nitride. The number of new preparation methods is endless, and they are all moving towards a low-pressure and low-temperature direction. The synthesis and use of nano boron ceramics has been a hot topic in recent years due to the growth of nanotechnology.
Hexagonal boran nitride has been called white graphite due to its similarity in crystal structure to graphite. In addition, it shares similar chemical and physical properties with graphite such as lubricity and thermal conduction. Hexagonal boran nitride can be used to make sintered ceramics. H-BN ceramics are used widely in high-temperature insulating components, metallurgy, aviation, atomic energy and other fields due to their good electrical insulation properties and low thermal coefficient. The superior performance of cubic boron-nitride makes it a popular raw material in the synthesis.
Ceramics containing boron-nitride exhibit excellent dielectric and thermo-stability properties. It is among the few compounds which can reach a temperature of decomposition. It exhibits excellent thermal and electric stability over a wide temperature spectrum. This type of ceramic is not currently used in radomes due to its low strength, hardness and elasticity. It also has a high thermal conductivity.
In the field of materials science, boron is a highly sought-after advanced ceramic material. Its superior mechanical properties are also a major factor. Due to the harsh conditions in the current synthesis, boron nitride’s application is limited. This new synthesis method has been a major focus in boron research. Select a reaction precursor with excellent thermodynamic properties and use them to reduce the temperature induced externally and the reaction temperature. This will allow you to control the morphology of the final product. Controlling the reaction conditions, and using the right reaction process, can affect the particle size and shape of the final product.
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