Scanning force microscopy of gypsum dissolution and crystal growth

被引：48

作者：

Hall, C ^{[1
]}

Cullen, DC ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,INST BIOTECHNOL,CAMBRIDGE CB2 1QT,ENGLAND

来源：

AICHE JOURNAL | 1996年 / 42卷 / 01期

关键词：

D O I：

10.1002/aic.690420119

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Dissolution and crystal growth on the (010) cleavage surface of mineral gypsum have been studied by scanning force microscopy, which allows observation of surfaces while they are in contact with aqueous solutions. Etch pits formed on the (010) surface in contact with solutions undersaturated with respect to gypsum are oriented in relation to the [001] zone axis. Edges parallel to [001] are stable or move only slowly. Edges parallel to [100] and [101] move more rapidly. Crystal growth by migration of step edges is observed in contact with supersaturated solutions. The inhibition of crystal growth by phosphonate produces gross changes in the texture of steps and terraces.

引用

页码：232 / 238

页数：7

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