Graphite to diamond-like carbon phase transformation by high-pressure torsion

Kaveh Edalati, Takeshi Daio, Yoshifumi Ikoma, Makoto Arita, Zenji Horita

研究成果: ジャーナルへの寄稿学術誌査読

22 被引用数 (Scopus)

抄録

Diamond-like carbon (DLC) with significant fraction of tetrahedral sp 3 bonds and amorphous structure is generally produced in the form of thin films by rapid cooling of high-energy carbon atoms in vacuum. This study shows that DLC can be directly formed from bulk samples of graphite by application of severe plastic deformation under high pressures. The formation of DLC is enhanced with increasing the shear strain, pressure, and temperature. It is suggested that the high pressure thermodynamically stabilize DLC and formation of high density of lattice defects by straining reduces the energy barrier for DLC formation.

本文言語英語
論文番号034108
ジャーナルApplied Physics Letters
103
3
DOI
出版ステータス出版済み - 7月 15 2013

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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