Polycrystalline γ-boron: As hard as polycrystalline cubic boron nitride

Jiaqian Qin, Norimasa Nishiyama, Hiroaki Ohfuji, Toru Shinmei, Li Lei, Duanwei He, Tetsuo Irifune

研究成果: Article査読

17 被引用数 (Scopus)

抄録

The Vickers hardness of polycrystalline γ-boron (γ-B) was measured using a diamond indentation method. The elastic properties of polycrystalline γ-B were determined using an ultrasonic measurement method. Under a loading force of up to 20 N our test gave an average Vickers hardness in the asymptotic hardness region around 30.3 GPa. We also measured the hardness and elastic properties of polycrystalline β-B and cubic boron nitride-Ti 3SiC 2 (PcBN) for comparison. The hardness and elastic properties of polycrystalline γ-B were found to be very close to those of PcBN.

本文言語English
ページ(範囲)257-260
ページ数4
ジャーナルScripta Materialia
67
3
DOI
出版ステータスPublished - 2012 8月
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 金属および合金

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