Ｘ線照射したイオン結晶の転位密度とフラクトルミネッセンス

概要

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Fractoluminescence (FL) has been observed by three bending tests of KCl single crystals doped with Ca<SUP>2+</SUP>, the size of which is 3 × 1 × 12mm<SUP>3</SUP>. FL has occurred only in the vicinity of fracture surface (within 0.3mm) and FL intensity as well as dislocation density has sharply decreased with increasing distance from fracture surface. And the dislocation density has approached to the initial one. Collecting data from many samples, it has been found that the FL intensity is proportional to the three-half power of the dislocation density. The relation between FL intensity and dislocation density has been explained by dislocation intersection.
日本材料学会の論文