REAL-TIME HIGH-RESOLUTION ELECTRON-MICROSCOPY (HREM) OBSERVATION OF THE COALESCENCE OF SMALL GOLD PARTICLES

被引：0
|
作者：
FLUELI, M [1 ]
BUFFAT, PA [1 ]
BOREL, JP [1 ]
机构：
[1] ECOLE POLYTECH FED LAUSANNE, INST INTERDEPT MICROSCOPIE ELECTR, CH-1015 LAUSANNE, SWITZERLAND
来源：
INSTITUTE OF PHYSICS CONFERENCE SERIES | 1988年 / 93期
关键词：
D O I：
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Small gold particles (almost-equal-to 5 nm in diameter) lying on amorphous carbon are observed to coalesce under the influence of the high intensity incident electron beam (20 A/cm-2 at 300 kV) in High-Resolution Electron Microscopy conditions. Rapid crystal growth (up to 4 nm3/s) at the neck of sintering occurs by migration of surface atoms. Mouvement and creation of defects such as twins or dislocations are also observed within the newly formed aggregate.
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页码：311 / 312
页数：2
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