セラミックに対する機能・構造設計のための適用技術と評価 Application Technique and Evaluation for Functional and Structural Design of Ceramics

Strength properties of monolithic ceramics have been studied from the viewpoints of fundamental strength and practical application through the interdisciplinary research and development of ceramic applied equipment such as a gas turbine, an automobile engine and so on by researchers, engineers and material researchers. However for the design, manufacture and reliability estimation for various commercial equipment using ceramics, the ceramics based on a fundamental strength evaluation does not necessarily result in sufficient safety and reliability of actual ceramic components, because of foreign object damage (FOD) , Hertz crack generation and chipping failure due to ceramic brittleness. Therefore, by extracting the basic concept and data of ceramic strength for functional and structural design from research for practical applications as well as interdisciplinary research, the author would like to emphasize in this paper significant points concerning the ceramic strength estimation method useful for the application of practical engineering international standard.