Artigo Revisado por pares

Compressibility of 18 metals to 45 kbar

1970; Elsevier BV; Volume: 31; Issue: 10 Linguagem: Inglês

10.1016/0022-3697(70)90247-7

ISSN

1879-2553

Autores

S.N. Vaboya, G. C. Kennedy,

Tópico(s)

Force Microscopy Techniques and Applications

Resumo

Volume compressions of 18 metals and pyrophyllite, boron nitride and talc have been determined by monitoring piston displacements in an end-loaded piston-cylinder apparatus. The present values are at variance with Bridgman's piston-cylinder measurements in the same range; the discrepancy being greater for more compressible substances. Our values are in close agreement with Bridgman's hydrostatic lever-piezometer measurements up to 30 kbar on rod shaped specimens of Cu, Ag, Pb, Ta and Fe and also with the room temperature values derived from shock wave data using Dugdale-MacDonald equation for variation of γ0(V) along the 0°K isotherm. Intercomparison of isothermal bulk modulus, B0, and its pressure derivative, B'0, obtained from the static and the ultrasonic measurements at high pressures has also been made.

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