Al_2O_3-SiO_2系ガラスファイバーの引張強度に及ぼす熱処理の影響

概要

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Effect of heat treatment on the tensile strength of Al_2O_3-SiO_2, Al_2O_3-SiO_2-ZrO_2 and Al_2O_3-SiO_2-Cr_2O_3 glass fibers was investigated. Like general glass fibers, the strength of these glass fibers decreased as the fiber diameters increased. There was little difference in tensile strength among three kinds of these fibers that had the same diameter but different in chemical composition, regardless whether they were heat-treated from 800 to 1100℃ or not. By the heat treatment up to 900℃, these fibers consisted of only amorphous phase, irrespective of their chemical composition. By the heat treatment at 1000 and 1100℃, all these fibers partly crystallized. However, they still contained at least 35 mass% of amorphous phase. Because the tensile strength of these fibers was independent of their heat treatment, their tensile strength can be governed mainly by the properties of amorphous phase in these fibers.
社団法人日本セラミックス協会の論文
1997-02-01