転位と不純物との相互作用に関する研究 (14) :　KCl 単結晶中の1 価不純物の有効応力に及ぼす歪の影響

Study on the interaction between a dislocation and impurities Part XIV : Dependence of the effective stress due to impurities on the shear strain in KCl single crystals doped with monovalent impurities

Creators Kohzuki Yohichi

The phenomenon that the effective stress (τp1) due to the impurities decreases with increasing　shear strain was observed at almost all the temperatures for KCl:Na+ (NaCl 0.5 mol% in the melt). On　the other hand, it could not be discerned for KCl:Li+ (LiCl 0.5 mol% in the melt). Accordingly, the critical　temperature, at which the effective stress is zero, is larger in stage Ⅰ of stress-strain curve, compared　with that in stage Ⅱ. Furthermore, the value of τp0 , the effective stress due to the impurities without　thermal activation, in stage Ⅰ is slightly larger than that in stage Ⅱ for KCl:Na+.

[ISSN]0387-9232

[NCID]AN00031668