Mechanical and thermal properties of single crystals of ZrB2

Norihiko Okamoto, M. Kusakari, K. Tanaka, H. Inui, M. Yamaguchi, S. Otani

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)

Abstract

Coefficients of thermal expansion (CTE), elastic constants and plastic deformation behaviors of single crystals of ZrB2, which possesses a hexagonal layered structure where pure Zr and pure B atomic planes stack alternatively along the c-axis, have been investigated in wide temperature ranges. While the observed elastic constants indicate highly anisotropic nature of atomic bonding being consistent with the layered structure, the observed CTE values are rather isotropic. Two operative slip systems, (0001)〈112̄0〉 and on {11̄00}〈112̄3〉, are identified in compression tests. The observed plastic behaviors are discussed in the light of the deduced anisotropy in atomic bonding.

Original languageEnglish
Pages (from-to)83-88
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume753
Publication statusPublished - 2003 Nov 11
Externally publishedYes
EventDefect Properties and Related Phenomena in Intermetallic Alloys - Boston, MA, United States
Duration: 2002 Dec 32002 Dec 5

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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