ELECTRON-MICROSCOPIC INVESTIGATION OF TETRAHEDRAL-SHAPED AGBR MICROCRYSTALS

Authors
GOESSENS C SCHRYVERS D VANLANDUYT J DEKEYZER R
Citation
C. Goessens et al., ELECTRON-MICROSCOPIC INVESTIGATION OF TETRAHEDRAL-SHAPED AGBR MICROCRYSTALS, Journal of crystal growth, 172(3-4), 1997, pp. 426-432
Citations number
9
Categorie Soggetti
Crystallography
Journal title
Journal of crystal growth → ACNP
ISSN journal
00220248
Volume
172
Issue
3-4
Year of publication
1997
Pages
426 - 432
Database
ISI
SICI code
0022-0248(1997)172:3-4<426:EIOTAM>2.0.ZU;2-D
Abstract
Tetrahedral AgBr crystals present in emulsions precipitated at high pA g values are investigated by conventional electron microscopy and elec tron diffraction. The defect structure of these crystals is determined to consist of two non-parallel (111)-type twin planes enclosing an an gle of 70.5 degrees. A growth model is presented explaining the morpho logy of both needle crystals and tetrahedral crystals in terms of the influence of twin planes on the growth behaviour of the crystals.