MgO-CaO-Al_2O_3-SiO_2-P_2O_5バイオガラス-セラミック系の結晶化に及ぼすAl/P比の影響

概要

論文の詳細を見る
Effects of the Al/P ratio on the crystallization of apatite and anorthite were investigated by differential thermal analyses on a series of glasses with the nominal composition of 3.0 wt% MgO, 35.0 wt% CaO, 41.4 wt% SiO_2, and 20.6 wt% (Al_2O_3+P_2O_5). It is shown that the activation energy for crystallization of apatite decreases with decreasing Al/P ratio, but that for crystallization of anorthite, on the contrary, increases. The Avrami parameter, n, was also estimated to be 2 and 1 for apatite and for anorthite, respectively.
1993-06-01