Metastable states during reaction milling of hcp transition metals with hydrocarbon

M. Nagumo*, T. S. Suzuki, K. Tsuchida

*この研究の対応する著者

研究成果: Article査読

20 被引用数 (Scopus)

抄録

The reaction process during milling of Zr and Ti with n-heptane has been investigated. Formation of a metastable intermediate phase characterized by fcc-like structure has been revealed at a certain milling time. It disappears upon heating with reversible appearance of the original hcp strucure. The amounts of H and C in the metal powders increase with milling time to a constant level at which stabilization of the intermediate phase takes place. The intermediate phase is presumably the stacking fault of hcp structure stabilized by H and C atoms as the precursor of the stable carbides. Dissociation of H from heptane precedes that of C. Site occupation is competitive between H and C, and stabilization of the intermediate phase during milling takes place by the increase of C content excluding H to sites with lower binding energy with H.

本文言語English
ページ(範囲)581-586
ページ数6
ジャーナルMaterials Science Forum
225-227
PART 1
DOI
出版ステータスPublished - 1996

ASJC Scopus subject areas

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

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