Material structure
Boron nitride has many crystal forms, the most common of which is hexagonal crystal system, which has a structure similar to graphite lattice and also has amorphous body. In addition to hexagonal crystal form, there are also rhombohedral boron nitride (r-BN), cubic boron nitride (c-BN) and wurtzite boron nitride (w-BN)1.
Performance characteristics of Boron nitride special-shaped ceramic parts
- Friction coefficient: Very low.
- High temperature stability: Very good.
- Thermal shock resistance: Very good. High strength.
- Thermal conductivity: Very high.
- Expansion coefficient: Low.
- Resistivity: Very large.
- Corrosion resistance: Excellent.
Microwave transmittance: It can transmit microwaves or infrared rays.
Production method: High temperature and high pressure synthesis method is the main method for producing boron nitride ceramics1.
Application field: Due to the high performance of Boron nitride special-shaped ceramic parts, it is widely used in various fields, including but not limited to electrical appliances, aerospace, vacuum technology equipment, industrial kilns, mining machinery, automotive electronics, chemical industry, etc.
Boron nitride special-shaped ceramic parts packaging and transportation

Product packaging is in accordance with the "Technical Specifications" or industry standards;
The product packaging is in line with the characteristics and performance of the product itself, including sufficient to prevent the product from moisture, rain, rust, corrosion, and shock, and can accept multiple handling, loading and unloading, and transportation;

Product Process and Production Flow
The production process of Boron nitride special-shaped ceramic parts includes key steps such as raw material selection, boron nitride powder preparation, molding, sintering, and post-processing and testing. Each step requires strict control of process parameters and operating conditions to ensure the quality and performance of the final product. With the advancement of science and technology and the continuous optimization of processes, the production process of boron nitride ceramics will continue to be improved and perfected to provide better material support for the development of various industries.
Performance Parameters
|
Category |
E |
L |
S |
|||
|
Main Ingredients |
BN+ZrO2+SiC |
BN+ALN |
BN+Si3N4 |
|||
|
density |
g/cm³ |
2.3 |
g/cm³ |
2.85 |
g/cm³ |
2.7 |
|
Leeb hardness |
HL |
600 |
HL |
650 |
HL |
650 |
|
Bending strength |
Mpa |
150 |
Mpa |
250 |
Mpa |
300 |
|
Thermal expansion coefficient (25℃-1200℃) |
(10-6/K) |
2-3 |
(10-6/K) |
4-6 |
(10-6/K) |
2-3 |
|
Thermal conductivity (normal temperature) |
W/mk |
15 |
W/mk |
70 |
W/mk |
45 |
|
Maximum operating temperature |
Air |
900℃ |
Air |
1950℃ |
Air |
1700℃ |
|
vacuum |
1500℃ |
vacuum |
vacuum |
|||
|
Inert atmosphere |
1700℃ |
Inert atmosphere |
Inert atmosphere |
|||
|
Room temperature resistivity |
Ω.cm |
>1012 |
Ω.cm |
>1014 |
Ω.cm |
>1014 |
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