EFFECT OF MICROSTRUCTURE AND MECHANICAL PROPERTIES ON WEAR RESISTANCE OF SILICON NITRIDE CERAMICS

Materiálové Inžinierstvo

关键词: Ceramics;    Silicon nitride;    Microstructure;    Wear resistance;   

DOI  :  

来源: DOAJ

【 摘 要 】

The wear of Si3N4 ceramics with high-resistant abrasive material during friction applications was analyzed. Effects of the hot pressing parameters on the microstructures and properties of ceramic samples were evaluated. Negative influence of grain growth with increasing of the beta-Si3N4 phase ratio on wear resistance of tested materials was proved. The volume loss of separate ceramic materials during the wear tests depended mainly inversely proportional on the hardness of ceramics. Both microcutting and microcracking mechanisms took part during the wear of Si3N4 ceramics.

【 授权许可】

Unknown