-
- PEZZOTTI Giuseppe
- Department of Materials Science, Toyohashi University of Technology
-
- KLEEBE Hans-Joachim
- Institut für Materialforschung, Universität Bayreuth
-
- 大田 健一
- 大阪大学産業科学研究所
-
- 西田 俊彦
- 京都工芸繊維大学工芸学部物質工学科
-
- 逆井 基次
- 豊橋技術科学大学物質工学科
書誌事項
- タイトル別名
-
- Cohesive Energy of Interfaces and Toughness of Fluorine-Doped Si<sub>3</sub>N<sub>4</sub>/SiC Composites
- Cohesive Energy of Interfaces and Tough
この論文をさがす
抄録
Fracture mechanics and electron microscopy studies were systematically conducted on a dense Si3N4 material reinforced with high-aspect-ratio SiC platelets. This model system contained only an amorphous SiO2 phase at the multigrain pockets and along the internal interfaces. Two different procedures (and their empirical combination) were followed to gradually weaken the grain interfaces and, hence, deliberately change the fraction of intergranular fracture within the material upon crack propagation. These procedures were: 1) the gradual addition of a fluorine impurity, which remains segregated at the grain boundaries after sintering, and 2) the adoption of a “quenching” process under high pressure. Quantitative high-resolution and analytical electron microscopy provided fundamental insight into the internal structure of the intergranular SiO2 phase doped with fluorine and the corresponding microcracking processes. Quantitative fractography allowed to estimate the apparent cohesive energy of the internal interfaces of the composite and to relate it to the macroscopic material toughness.
収録刊行物
-
- Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)
-
Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 104 (1205), 17-22, 1996
公益社団法人 日本セラミックス協会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001205277103616
-
- NII論文ID
- 110002291303
-
- NII書誌ID
- AN10040326
-
- ISSN
- 18821022
- 09145400
-
- NDL書誌ID
- 3917987
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可