種々の焼結法で製作したSi_3N_4の高温曲げ強度と圧こん法破壊じん性およびそれらのばらつき
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概要
- 論文の詳細を見る
Sintering, hot-pressed and reaction bounded silicone nitrides with common chemical composition were prepared to investigate the characteristics of fracture strength and fracture toughness at elevated temperature, and also the effect of density of them. Mean fracture strength at 1000℃ depended on density, while Weibull shape parameter m for fracture strength was influenced by the sintering method. Fracture toughness as room temperature depended on the sintering temperature. The Weibull shape parameter for fracture toughness was higher than and was almost twice that for fracture strength. The size of the defect which controlled the fracture strength in pressurized sintering specimens was smaller than that in non-pressurized specimens. The pressurized sintering which reduces the defect size, and the high temperature sintering which activates to form the column shaped β-Si_3N_4 are desirable to improve the fracture strength and the fracture toughness of silicone nitride.
- 一般社団法人日本機械学会の論文
- 1988-05-25
著者
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田中 紘一
Research Reactor Institute Kyoto University
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田中 紘一
長岡技術科学大学
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武藤 睦治
長岡技術科学大学システム安全系
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武藤 睦治
長岡技術科学大学
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丹羽 敏男
三菱自動車工業(株)
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Tatsumi Koichiro
Department Of Respirology (b2) Graduate School Of Medicine Chiba University
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