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Plastic Deformation of ZrB 2 Single Crystals
Author(s) -
HAGGERTY J. S.,
LEE D. W.
Publication year - 1971
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1971.tb12210.x
Subject(s) - materials science , indentation , composite material , slip (aerodynamics) , indentation hardness , yield (engineering) , critical resolved shear stress , shear (geology) , deformation (meteorology) , plasticity , microstructure , thermodynamics , shear rate , physics , viscosity
The active slip planes, the Burgers vector, and the critical resolved shear stress to induce macroscopic deformation in ZrB 2 single crystals were determined. Room‐temperature microhardness indentation and high‐temperature uniaxial compression loadings were used to induce deformation. Slip occurred in a close‐packed α direction on prismatic planes at room temperature and on the basal plane at high temperatures. The high‐temperature yield stress and yield drop are discussed in terms of a Widmanstaetten‐type precipitate observed in the crystals.