Synthesis and morphological aspects of AlN whiskers from Al powders obtained by spark discharged process

Yasunari Kaneko, Hiromichi Iwasaki, Yoshitaka Matsumoto, Minoru Nishida, Akihiro Mouri, Akira Chiba

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Synthesis of AlN whiskers from Al powders obtained by a spark discharged process and their morphology were studied. AlN whiskers were synthesized by nitridation of the compositions in the Al-C system in N2-gas flow at 1450°C for 24 hours. Morphological aspects of the whiskers were observed by a scanning and a transmission electron microscopes. Al powders obtained by the spark discharged process were covered with a thin layer of hydroxide and did not melt nor coalesce up to 1000°C in air. Morphologies of the synthesized whiskers were divided into three types; two single filament types and one bicrystal type. Both of the single filament whiskers had 〈0001〉 growth direction. The growth direction of the latter type deviated about 13 degrees from 〈0001〉 axis. All the whiskers were thin plate-like. The internal defect of whiskers was also described.

本文言語英語
ページ(範囲)1347-1352
ページ数6
ジャーナルJournal of the Society of Materials Science, Japan
39
445
DOI
出版ステータス出版済み - 1990
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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