Abstract
Amorphous silicon carbonitride (SiCN) and boron-containing silicon carbonitride (SiBCN) have better high temperature properties than silicon carbide (SiC) and silicon nitride (Si3N4). The glass transition temperature (Tg) of SiCN is above 1400°C, and start to decompose to polycrystalline of SiC and Si3N4. The SiBCN material remains amorphous at temperature up to 1700°C and begin to crystallize above 1800°C SiCN and SiBCN have an excellent resistance to oxidation at 1600°C- According to the needs of high temperature materials, we discuss the thermal stability, oxidation resistance, and resistance to creep of those materials, respectively. Prospect the development of SiCN and SiBCN as high temperature ceramic materials.
Original language | English |
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Pages (from-to) | 39-41 |
Number of pages | 3 |
Journal | Cailiao Gongcheng/Journal of Materials Engineering |
Issue number | 12 |
State | Published - 2000 |
Keywords
- Boron-containing silicon carbonitride
- Oxidation resistance
- Resistance to creep
- Silicon carbonitride
- Thermal stability