Diffusional Creep in Polycrystalline Sodium Chloride
- 1 August 1965
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 36 (8) , 2412-2413
- https://doi.org/10.1063/1.1714501
Abstract
Steady‐state creep of polycrystalline sodium choride having grain size stabilized by the addition of an aluminum oxide dispersion and containing about 4% porosity was investigated at 740°C over a range of grain sizes from 65–130 μ and at stresses from 2.1–8.4 kg/cm2. Deformation was viscous (strain rate directly proportional to stress) at a rate in good agreement with the Nabarro—Herring equation, assuming the deformation rate to be limited by chlorine ion diffusion. Grain‐size dependence and absolute creep rates were satisfactorily predicted with Laurent and Bénard's diffusion data, including the influence of grain size on diffusion coefficients.This publication has 3 references indexed in Scilit:
- A Model for Boundary Diffusion Controlled Creep in Polycrystalline MaterialsJournal of Applied Physics, 1963
- Autodiffusion des ions dans les halogenures alcalins polycristallinsJournal of Physics and Chemistry of Solids, 1958
- Diffusional Viscosity of a Polycrystalline SolidJournal of Applied Physics, 1950