MICROSTRUCTURAL STUDIES OF POLYTYPE FORMATION IN OXYGEN-CONTAINING ALUMINUM NITRIDE

被引：7
|
作者：
PILYANKEVICH, AN
BRITUN, VF
OLEYNIK, GS
机构：
[1] Institute of Materials Science, Academy of Sciences of the Ukrainian SSR, Kiev
来源：
JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 08期
关键词：
Microscopic Examination--Transmission Electron Microscopy;
D O I：
10.1007/BF00575380
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Oxygen-doped AlN polycrystals were investigated by transmission electron microscope, and different stages of multilayered polytype formation during pressureless sintering were fixed. The decomposition of polytypes was found to take place during quasihydrostatic compression of samples at high temperatures. A model of multilayered polytypes appearing is proposed. The process of polytype formation is represented as isostructural delamination of the AlN-O solid solution at the expense of oxygen extraction on stacking faults, causing the oxygen-rich interlayer formation. © 1990 Chapman and Hall Ltd.
引用
收藏
页码：3517 / 3520
页数：4
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