Computer Simulation of the Sintering of Two Spheres
The early sphere on plate and two-sphere sintering models assumed single mechanisms and predicted specific neck radius and linear shrinkage dependencies on isothermal sintering time [1–7]. It gecame apparent that in many circumstances more than a single mechanism would be operative, and the observed time dependence of neck growth and shrinkage would be altered . A method of analyzing initial sintering of spheres under conditions that grain boundary, volume and surface diffusion were occurring simultaneously was proposed and has proven successful for the investigation of sintering of spherical metallic particles with a narrow size distribution. A computer program was written which simulated sintering behavior which compared quite favorably with experimental data . The following is a discussion of the model and its early successes.
KeywordsSurface Diffusion Boundary Diffusion Volume Diffusion Linear Shrinkage Neck Size
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