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Effect of functionally graded material (FGM) layers on the residual stress of polytypoidally joined Si3N4–Al2O3

✍ Scribed by Caroline S. Lee; Sung-Hoon Ahn; Lutgard C. DeJonghe; Gareth Thomas

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
649 KB
Volume
434
Category
Article
ISSN
0921-5093

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The heat treatment of silicon nitride ceramics with only CeO 2 as a sintering additive was carried out at different temperatures. Large residual stress was induced only by the non-relaxed volume changes and not by the relaxed volume changes (i.e. the crystallized phases with cavities or microcracks)