著者

佐藤 和好 佐藤 匠海 武蔵 徳明 田中 諭 内田 希 植松 敬三

出版者

公益社団法人日本セラミックス協会

雑誌

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi (ISSN:18821022)

巻号頁・発行日

vol.109, no.1276, pp.1055-1056, 2001-12-01

被引用文献数

1

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A confocal scanning laser microscope (CSLM) was applied to identify the location of fracture origin in alumina ceramics. Alumina-referceram was ground to obtain JIS R-1601 specimens using a grinding machine. They were fractured in four point bending to measure strength. CSLM and scanning electron microscope (SEM) micrographs of fracture surface were compared. With a CSLM, the location of fracture origin could be easily determined, while it was very difficult with a SEM. Fracture toughness K_<IC>=2.3MPa ・ m^<1/2> ealculated from the measured size of fracture origin and the flexural strength