TRIBOLOGICAL INDUCED MICROSTRUCTURAL CHANGES IN SUBSURFACE LAYERS OF SI3N4-BASED MATERIALS

被引：0
|
作者：
DORFEL, I
GESATZKE, W
OSTERLE, W
SKOPP, A
机构：
来源：
SILICON NITRIDE 93 | 1994年 / 89-9卷
关键词：
SILICON NITRIDE; CERAMIC COMPOSITE; WEAR BEHAVIOR; TRIBO-OXIDATION; SUBSURFACE LAYERS; CROSS-SECTIONAL TEM; EDX; SEM;
D O I：
暂无
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructures of tribo-oxidation layers on sintered Si3N4 and a Si3N4/TiN composite stressed at 800 degrees C were investigated in the analytical TEM after preparation of appropriate cross sections. In both materials 200-400 nm thick layers of nanocrystalline oxide particles associated with amorphous silicon oxide were observed in the low wear regime. Whereas the soft layer, which had formed on the composite, provided very good wear resistance, the harder one on sintered Si3N4 could not absolutely prevent microcracking and debris formation.
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页码：763 / 767
页数：5
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