Anisotropic elastic constants and thermal expansivities in monocrystal CrB2, TiB2, and ZrB2

Norihiko L. Okamoto, Misato Kusakari, Katsushi Tanaka, Haruyuki Inui, Shigeki Otani

研究成果: Article

87 引用 (Scopus)

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The elastic constants and thermal expansivities in monocrystals of three transition-metal diborides with the AlB2 structure, CrB2, TiB2, and ZrB2, have been investigated in the temperature ranges from 300 to 1373 K and from 300 to 1073 K. The anisotropic parameters deduced from the measured elastic constants and thermal expansivities indicate that of the three diborides, the anisotropy is the most and least significant in CrB2 and ZrB2, respectively. The factors determining the significance in anisotropy in atomic bonding in AlB2-type diborides are analyzed by an approach similar to the valence-force-field method and are discussed in terms of the deformation of the electronic charge around the metal atoms occurring to fit themselves in the (0 0 0 1) basal plane.

元の言語English
ページ(範囲)76-84
ページ数9
ジャーナルActa Materialia
58
発行部数1
DOI
出版物ステータスPublished - 2010 1 1
外部発表Yes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

フィンガープリント Anisotropic elastic constants and thermal expansivities in monocrystal CrB<sub>2</sub>, TiB<sub>2</sub>, and ZrB<sub>2</sub>' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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