A study on the microstructure of cordierite glass-ceramics composites containing $Si_3{N_4}$ whisker

$Si_3{N_4}$휘스커 첨가량에 따른 코디에라이트 glass-ceramics 복합체의 미세구조

Cordierite based glass ceramics has become an electronic substrate material for electronic circuits and the use of whickers for improving strength and toughness is evident. Pure cordierite containing 15 vol.% silicon nitride were sintered by hot-prossing and it has above 99% density. Especially, it is assumed that toughening increasing at the more high sintering temperature relevants to the glass phase increasing, as showned in the roughness of the fracture surfaces. It was directionally dependent of whisker drirection during processing.