S042014 短時間溶出処理した透明シリカ系ガラスの機械的性質の改善([S04201]セラミックスおよびセラミックス系複合材料(1))

概要

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Effects of dissolution treatment on the Charpy impact value (a_uc) of transparent silicate glasses were studied under 0.18 MPa at 390 Kin the distilled water. The dissolution phenomenon was confirmed by the clearly mass decrease of transparent silicate glasses. Dissolution treatment at less than 0.3 h enhanced a_uc values at the low fracture probability (P_f) of 0.06 were about 5.5 and 4.4 times higher than those of untreated soda and borosilicate glasses, respectively. Additional dissolution treatment at time after more than 1.0 h clearly reduced the a_uc values of both glasses. Consequently, dissolution treatment at short time raised the impact fracture toughness of transparent silicate glasses.
一般社団法人日本機械学会の論文
2011-09-11