FORMATION OF GALLIUM NITRIDE BY A NOVEL HOT MECHANICAL ALLOYING PROCESS

被引:24
作者
MILLET, P [1 ]
CALKA, A [1 ]
WILLIAMS, JS [1 ]
VANTENAAR, GJH [1 ]
机构
[1] AUSTRALIAN DEF FORCE ACAD,CAMPBELL,ACT 2600,AUSTRALIA
关键词
D O I
10.1063/1.110463
中图分类号
O59 [应用物理学];
学科分类号
摘要
Using a novel ball mill with controlled ball movement and operating at elevated temperature, gallium nitride powder has been synthetized by simple milling of gallium metal in a dry ammonia atmosphere. The structural changes resulting from milling were studied by x-ray diffractometry and transmission electron microscopy. The elemental composition of the as-milled product was analyzed using Rutherford backscattering spectroscopy. A nanostructural phase was obtained following milling, which transforms into polycrystalline GaN of the wurtzite-type structure upon further thermal treatment.
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页码:2505 / 2507
页数:3
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