Electron microscopical investigation of tetrahedral-shaped AgBr microcrystals

被引：15

作者：

Goessens, C

Schryvers, D

VanLanduyt, J

DeKeyzer, R

机构：

[1] UNIV ANTWERP,RUCA,B-2020 ANTWERP,BELGIUM

[2] GEVAERT NV,AGFA,B-2640 MORTSEL,BELGIUM

来源：

JOURNAL OF CRYSTAL GROWTH | 1997年 / 172卷 / 3-4期

关键词：

D O I：

10.1016/S0022-0248(96)00750-6

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Tetrahedral AgBr crystals present in emulsions precipitated at high pAg values are investigated by conventional electron microscopy and electron diffraction. The defect structure of these crystals is determined to consist of two non-parallel (111)-type twin planes enclosing an angle of 70.5 degrees. A growth model is presented explaining the morphology of both needle crystals and tetrahedral crystals in terms of the influence of twin planes on the growth behaviour of the crystals.

引用

页码：426 / 432

页数：7

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