Research Into Sintering and Related Phenomena: Personal Experience

Abstract

The studies of deformation and diffusion processes during sintering are analyzed. Attention is paid to data on the effect of compressive and tensile stresses on shrinkage of Ag, Cu, and Ni powders. Superplastic deformation and movement of particles as a whole are observed during shrinkage. Self-diffusion in carbides of transition metals as well as their creep and neck growth during sintering are widely studied. The effective diffusion coefficient theory is developed to be applied to diffusion-controlled processes in interstitial phases. The proposed relationships are shown to be applicable to the creep and neck growth during sintering. Areas of further studies as applied to nanosubjects are discussed.