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What is boron carbide powder?

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Author : TRUNNANO
Update time : 2023-04-24 11:28:00
What is boron carbide powder?
Boron carbide powder is a black, hard, brittle, shiny crystal, which is a granular material made from crushed boron carbide crystals. It is a hard and brittle material with very high electrical and thermal conductivity. The preparation methods of boron carbide powder include high-temperature and high-pressure preparation, pyrolysis preparation and mechanical crushing preparation.
Boron carbide powder has a very high electrical and thermal conductivity, so it has a wide range of applications in the field of high-strength materials at high temperatures and pressure. In many fields, boron carbide is widely used as a reinforcing phase. In this paper, we will introduce the properties and applications of boron carbide powder comprehensively from the introduction of basic information, description of physical properties, analysis of application scenarios, and discussion of future development trends.
The most stable boron carbide structures are B13C2, B12C3, B4C and other phases close to B12C3 with rhombohedral hexahedral structures. There are also some boron carbide structures with sub-stable phases.
The rhombohedral hexahedral structure of boron carbide consists of 12 icosahedral clusters of atoms connected to each other by covalent bonds and a triatomic chain on the diagonal of the rhombohedral hexahedron. The dodecahedral structure of poly boron is located at the apex of the rhombohedral hexahedron. Boron atoms and carbon atoms can substitute each other within the icosahedron and on the atomic chain, which is the main reason why boron carbide has so many tautomers. The most widely accepted B4C structure has a BllC icosahedron and a C-B-C chain of atoms.
 
Characteristics of boron carbide powder
Boron carbide is a non-metallic material with important physicochemical properties, after boron nitride, the hardest boron compound. Its high melting point, large neutron capture surface, low density, chemical inertness, and excellent thermal and electrical properties make boron carbide a new material for high-tech applications. Boron carbide is also used as an addition to alumina and silicon carbide ceramics to improve the fracture toughness and relatively more strength of the material; it is also used in a wide range of applications because of its high neutron absorption.
The physical properties of boron carbide include color, density, hardness, and melting point. It is a black crystal with very high electrical and thermal conductivity. The density of boron carbide powder is usually between 3.0-3.8 g/cm, the hardness is usually between 8.0-11.0 J/MPa, and the melting point is between 2250-2400°C.
Boron carbide is a high-temperature P-type semiconductor material. It has excellent properties such as strong hardness, low density, and high chemical inertness. It can react with Fe, Ni, Ti, Zr, and other metals at a high temperature of 1000C. In addition, boron carbide has good applications in atomic physics and medicine because of the strong neutron absorption ability of atoms. In addition, boron carbide has a wide range of applications in microelectronics, nuclear physics, and military and space technology due to these properties.
 
Applications of boron carbide powder
Boron carbide powder has a wide range of applications in various fields, including but not limited to semiconductor materials, medical devices, aerospace, etc. In the field of semiconductor materials, boron carbide powder can be added to wafers, silicon wafers and other materials as whiskers to improve the electrical conductivity and strength of the material. In the field of medical equipment, boron carbide powder can be used in the manufacture of high-end dental equipment and medical devices to improve the precision and stability of the equipment. In the aerospace field, boron carbide powder can be used to manufacture high-temperature and high-pressure aerospace parts to improve the strength and wear resistance of the parts.
 
Boron carbide is mainly used in structural materials, chemical raw materials, electrical properties, nuclear properties, composite ceramics and so on. In the structural materials, because of its high hardness can be used as an abrasive for a variety of hard metals, steel jade or glass processing, but also to produce wear-resistant, corrosion-resistant boron carbide devices, in addition to external boron carbide materials can also be used as cutting edge, mortar, etc.; can also be used as a helicopter light armor, bulletproof undershirt, etc.
 
In the chemical raw materials can be used as boron agents of steel or other alloys in the steel surface boron penetration, in order to generate a thin layer of iron boride to enhance the strength and wear resistance of the material, but also for some metal-based friction materials additives; in the reduction - chemical method to make boride powder, boron carbide as a boron source, can be made TiB2, ZrB2, GrB2 and other powders, can also be manufactured boron halide, hydrogen boride, etc., known as the manufacture of powder "boron carbide method".
 
With the continuous development of science and technology, the application prospect of boron carbide powder will be broader. At present, the preparation method of boron carbide powder has been very mature, but with the increasing market demand, the production capacity of boron carbide powder will also be limited. Therefore, the future development direction mainly includes improving the production capacity and quality of boron carbide powder, improving the application field of boron carbide powder, and promoting the industrialization of boron carbide powder.
 
Boron carbide supplier
Luoyang Tongrun Nano Technology Co. Ltd.  (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Zinc sulfide, nitride powder, Zinc sulfide powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Boron carbide, you are welcome to contact us or inquire any time.
 
 
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