Raman spectroscopy of pressure-induced amorphous boron carbide

X. Q. Yan, W. J. Li, T. Goto, M. W. Chen

研究成果: Article査読

110 被引用数 (Scopus)

抄録

We report low- and high-temperature Raman spectroscopy of pressure-induced amorphous boron carbide (a- B4 C). Coarsening of carbon clusters in a- B4 C was characterized during heating, whereas unusual temperature coefficients of a- B4 C Raman peak shifts were observed during cooling. These results experimentally evidence that the amorphization of B4 C is associated with the destruction of the C-B-C chains and a- B4 C is composed of s p2 carbon aromatic rings and boron clusters. This disordered structure with relatively weak carbon s p2 bonds is believed to be responsible for the loss of B4 C shear strength at high pressures.

本文言語English
論文番号131905
ジャーナルApplied Physics Letters
88
13
DOI
出版ステータスPublished - 2006
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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