Radiation Defects in Aluminum Nitride-Based Ceramics

被引：1
|
作者：
Kozlovskii, A. L. [1 ,2 ]
Dukenbaev, K. [3 ]
Zdorovets, M. V. [1 ,2 ,4 ]
机构：
[1] Minist Energy Republ Kazakhstan, Inst Nucl Phys, Alma Ata, Kazakhstan
[2] Gumilyov Eurasian Natl Univ, Astana, Kazakhstan
[3] Nazarbayev Univ, Sch Engn, Astana, Kazakhstan
[4] Ural Fed Univ, Ekaterinburg, Russia
来源：
HIGH ENERGY CHEMISTRY | 2019年 / 53卷 / 01期
关键词：
ceramics; hillocks; ionizing radiation; structural properties; GRAIN-GROWTH; NANOCRYSTALLINE; MICROSTRUCTURE;
D O I：
10.1134/S0018143919010077
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The defect formation in AlN ceramics by bombarding with Fe+7 ions at a fluence ranging from 1 x 10(11) to 1 x 10(14) ion/cm(2) has been studied. Changes in the main crystallographic characteristics, a decrease in the Griffiths criterion, and an increased in average stress as a result of irradiation are due to the appearance of additional defects in the structure and their subsequent evolution leading to changes in the degree of crystallinity. Pyramidal hillocks with an average height of 17-20 nm are observed to form on the surface of samples irradiated with Fe+7 ions at a fluence of 1 x 10(11) ion/cm(2).
引用
收藏
页码：71 / 75
页数：5
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