アイゾット衝撃試験による繊維強化セラミックスの破壊エネルギー評価

抄録

(1) Izod impact test was proposed to evaluate the fracture energy of mode I failure of fiber-reinforced ceramics.
(2) By selecting the notch geometry of a specimen and the loading condition, the fracture of carbon fiber-reinforced silicon nitride resulted from mode I crack.
(3) The fracture energy of carbon fiber-reinforced silicon nitride measured by Izod impact test was about 62kJ/m² which 20 times as large as that of monolithic silicon nitride.