Maideli is a professional company of design ,production and sales for precious ceramics ,refractory ceramics and new inorganic non-metallic materials ,that is alumina ,zirconia ,magnesia ,silicon nitride and silicon carbide .
1. Product details
Boron nitride (BN) ,also known as " white graphite",belongs to the sheet-like hexagonal structure . The hot-pressed sintering process can be used to make the boron nitride ceramics of high quality due to its good high temperature resistance . It can work under long-term working at 1800℃ high temperature ,but also has good thermal shock resistance and acid corrosion ,so it can be used in harsh environments for a long time , it is widely used in the smelting semiconductors crucibles and merallurgical high temperature containers ,semiconductors thermal insulation parts ,high temperature bearings ,thermwell and glass forming molds ,etc...
2. Technical index
| Item | Reference value |
| Volume density g/cm3 | 2.0 |
| Bending strength Mpa | 100 |
| Apparant porosity % | 1.5 |
| Thermal conductivity W/(m2·K)(20～1000℃） | 23 |
| Electrical resistivity Ω·m | >=1.0x1016 |
| Coefficient of thermal expansion 10-6/K(20~1000℃) | 1.8 |
3.Dimension
We can supply customized designed products ,contact sales@mdlmaterials.com to know more details .
