Pressure Dependence of Creep in Zn and Cd

Abstract
Bending creep in Zn is reported as a function of hydrostatic confining pressure P up to 8 kbars. The ratio of activation volume for creep to atomic volume, ΔV/V0=0.65−0.044 P (P in kbars), is essentially independent of temperature between 27° and 57°C. The ratio ΔV/V0=0.63−0.035 P for creep of Cd is independent of temperature between 0° to 57°C. ΔV/V0 for Zn at a given pressure was 5 to 15% higher for creep than for self‐diffusion in the basal plane reported by Liu and Drickamer.

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