Boron Nitride Rod
Boron nitride ceramics is a kind of emerging industrial material, is a hexagonal crystal system, with a similar structure with graphite, performance also has a lot of similarities, so it is also called "white graphite".
Description
Boron nitride rods are processed from a new industrial ceramic material-boron nitride ceramics. Boron nitride has a crystal structure similar to graphite, and there are many similarities in performance, so it is also called "white graphite". Boron nitride ceramics are not only resistant to high temperatures, but also have excellent insulation, chemical stability, and lubricity. Therefore, it has become a new type of industrial ceramic material with a wide range of uses.
Data reference：
Category/Index | Grade | Boron Nitride Ceramic | ||
Physical properties | Density | g/cm3 | 2.0-2.2 | |
Exterior | White/Yellowish | |||
Bending strength(Mpa) | Mpa | 35 | ||
Moh's hardness | 2 | |||
Hardness | HL | 300 | ||
Thermal performance | Thermal conductivity at 20℃（w/m·k） | w/m·k | 50 | |
Thermal expansion coefficient（25℃-1200℃） | 10-6/K | 2*10-6 | ||
MAX-Temperature of use | Oxidizing | 900℃ | ||
Inert | 2200℃ | |||
Vacuum | 1600℃ | |||
Electrical performance | Volume resistivity25℃ | Ω·cm | ＞1014 | |
Dielectric constant 108Hz | 4.5 | |||
Dielectric strength | KV/mm | 60 | ||
puncture voltage | KV | 2-3 | ||
Chemical composition | B+N | 99% | ||
Oxygen content | % | ＜0.5% | ||
Carbon content | % | ＜0.05% | ||
Adhesive | No | |||
Main properties and applications：
Boron nitride ceramics have good heat resistance, thermal stability, thermal conductivity, high-temperature dielectric strength, are ideal heat dissipation materials, and high-temperature insulation materials.
The chemical stability of boron nitride ceramic is good and it does not react with general metals, rare earth metals, precious metals, glass, molten salts, and so on.
Boron nitride ceramic also has good self-lubricity And a lower coefficient of friction.It can be used for all kinds of self-lubricating bearings and powder metallurgy products with self-lubricity.
Boron nitride products have low hardness, can be pressed into various shapes of boron nitride products, can be used as high temperature, high pressure, insulation, heat dissipation parts
Our company can customize all kinds of precision boron nitride ceramics according to customers' requirements.
