(英) Striations in the KCl single crystals grown from aqueous solutions (日)
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(英) Growth striations were always observed on the etched surfaces of KCl crystals grown from aqueous solutions doped with Pb. However, the origin of the striations is not known in the case of aqueous solution growth. In this work, it was studied how the width and period among the striations were influenced by the growth rate and concentration of the dopant Pb. The crystals were grown from the aqueous solutions doped with Pb (1/4000 1/1250 in molar fraction) by an evaporation method at pH=2.0. The average growth rates were changed from 24 to 115 mm/day by controlling the evaporation rate. It was found that both the width and period among the striations decreased with an increase of the average growth rate. However, the effects of the concentration of dopant Pb upon the width and period among the striations were not found within the concentration range examined. (日) 成長縞はメルト成長,溶液成長,フラックス成長においてごく普通に形成される.メルト成長においては成長縞は固液界面温度の周期的変化によって形成されると考えられている.しかし溶液成長においてはその形成メカニズムは解明されていない.本研究ではKClの水溶液成長で,成長縞の間隔に及ぼす成長速度や添加物(Pb)の効果を調べ,その結果にもとずいて形成機構を考察した.
Tadasuke Kamei, Tetsuo Inoue, Shin-ichiro YanagiyaandAtsushi Mori : Striations in the KCl single crystals grown from aqueous solutions, Journal of Crystal Growth, Vol.243, No.3-4, 517-521, 2002.
欧文冊子 ●
Tadasuke Kamei, Tetsuo Inoue, Shin-ichiro YanagiyaandAtsushi Mori : Striations in the KCl single crystals grown from aqueous solutions, Journal of Crystal Growth, Vol.243, No.3-4, 517-521, 2002.
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