ZIRCONIA TOUGHENED, WHISKERS REINFORCED ALUMINA COMPOSITES

摘要

Composites having improved toughness based on a matrix of alpha-alumina, are prepared by a sol-gel process. Binary composites comprise finely dispered zirconia, in tetragonal form, present in an amount from 2 to 30% by weight. Ternary composites comprise the above zirconia and whiskers, filaments or fibres up to 30% by weight.