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Abstract
The effects of heat treatment in air on the bending strength and fracture toughness of sintered silicon nitride containing CeO_2, MgO and SrO additives were studied. The bending strength at elevated temperatures was improved 15 to 20% by the heat treatment (1000℃/2 h) , but the bending strength at room temperature was not affected. The apparent values of fracture toughness for notched specimens increased by the oxidation at the notch root.
Journal
- Journal of the Ceramic Society of Japan [List of Volumes]
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Journal of the Ceramic Society of Japan 97(1131), 1409-1411, 1989-11-01 [Table of Contents]
The Ceramic Society of Japan