1993/04/01 by R. J. Nelmes, J. S. Loveday, D.R. Allan +4 · 2 citations
Materials Science · Physics and Astronomy · Engineering · #Boron and Carbon Nanomaterials Research #Rare-earth and actinide compounds #Metal and Thin Film Mechanics
paper · doi:10.1103/physrevb.47.7668
openalex publication_date 1993/04/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/06/11
The bulk modulus of \ensuremathβ-boron has been measured up to 10 GPa by neutron powder diffraction using an opposed-anvil pressure cell. The bulk modulus of \ensuremathα-boron has also been measured to 5 GPa by single-crystal x-ray techniques. The values have been determined to be 185(7) GPa for \ensuremathβ-boron and 224(15) GPa for \ensuremathα-boron. These values are markedly smaller than those measured for other hard materials, but total-energy calculations for \ensuremathα-boron are in reasonable agreement.