Indentation hardnesses of semiconductors and a scaling rule

I. Yonenaga, T. Suzuki

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)


The Vickers hardnesses of 15 semiconductors, namely Si, Ge, SiC, AlN, GaN, GaP, GaAs, GaSb, InP, InAs, InSb, ZnO, ZnSe, ZnTe and CdTe, have been investigated from room temperature to their melting points. The temperature dependences of the Vickers hardness Hv of 11 of these semiconductors, namely those with a cubic structure, obey a universal relationship when Hv and the temperature T are scaled respectively by the shear modulus G and by Gb3/kB, with b being the magnitude of the Burgers vector. The scaling rule is the same as that found for the temperature dependence of the critical shear stress τc for the {111}〈1̄10〉 slip system, satisfying the relationship Hv = (70-100)τc.

Original languageEnglish
Pages (from-to)535-542
Number of pages8
JournalPhilosophical Magazine Letters
Issue number10
Publication statusPublished - 2002 Oct
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


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