Adsorption of an Al (III) Impurity onto the (100) Face of a Growing KDP Crystal in Supersaturated Solution
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- 作者：Noriaki Kubota ; Shigeko Sasaki ; Norihito Doki ; Naoto Minamikawa ; and Masaaki Yokota
- 刊名：Crystal Growth & Design
- 出版年：2004
- 出版时间：May 2004
- 年：2004
- 卷：4
- 期：3
- 页码：533 - 537
- 全文大小：87K
- 年卷期：v.4,no.3(May 2004)
- ISSN：1528-7505
文摘
The growth-starting supercooling 
TG, defined as a supercooling at which a crystal starts to grow oncooling, was measured for the (100) face of a potassium dihydrogen phosphate (KDP) crystal on which an Al (III)impurity had been adsorbed beforehand. When adsorption was made onto the nongrowing (100) face at a lowsupercooling value of TA = 0.6 
C, the measured values of TG were successfully explained with a mathematicalmodel considering the Langmuir equilibrium (or instantaneous) adsorption. On the contrary, smaller values of TGwere obtained when adsorption was made on the growing (100) face at a high supercooling value of TA = 6.0 C.These smaller values obtained for the adsorption at TA = 6.0 C are concluded to be due to an insufficient amountof the adsorbed Al (III) impurity, and the adsorption is shown to proceed more slowly onto the growing (100) facecompared to the nongrowing face.
TG, defined as a supercooling at which a crystal starts to grow oncooling, was measured for the (100) face of a potassium dihydrogen phosphate (KDP) crystal on which an Al (III)impurity had been adsorbed beforehand. When adsorption was made onto the nongrowing (100) face at a lowsupercooling value of TA = 0.6 C, the measured values of TG were successfully explained with a mathematicalmodel considering the Langmuir equilibrium (or instantaneous) adsorption. On the contrary, smaller values of TGwere obtained when adsorption was made on the growing (100) face at a high supercooling value of TA = 6.0 C.These smaller values obtained for the adsorption at TA = 6.0 C are concluded to be due to an insufficient amountof the adsorbed Al (III) impurity, and the adsorption is shown to proceed more slowly onto the growing (100) facecompared to the nongrowing face.