ポアテイル法によるアルミナセラミックスの新しい破面解析方法

概要

論文の詳細を見る
Many small pores, which are nucleated through sintering and thermal treating processes, remain in alumina crystals. It was observed that when a crack crossed a pore, the pore divided the crack plane into two planes having different height level, and then formed a crack surface misfit. On the fracture surface, this misfit originating at a pore was observed as though "tail" Therefore, this crack surface misfit was named "Pore tail". Pore tail has two important parameters. One is tail length, and the other is tail direction. Pore tails on fracture surfaces of sintered Al_2O_3 were observed precisely and the fracture origin could be found by analyzing the morphology of pore tail. It is concluded that "pore tail" is an useful sign as well as the "Mirror", "Mist" and "Hackle".
一般社団法人日本機械学会の論文
1996-03-25