Authors: Randall M German
Publish Date: 2017/01/05
Volume: 69, Issue: 4, Pages: 630-634
Abstract
Particles flow and pack under stress allowing shaping of the particles into target engineering geometries Subsequently in a process termed sintering the particles are heated to induce bonding that results in a strong solid Although first practiced 26000 years ago sintering was largely unexplained until recent times Sintering science moved from an empirical and largely qualitative notion into a quantitative theory over a relatively short time period following World War II That conceptual transition took place just as commercial applications for sintered materials underwent significant growth This article highlights the key changes in sintering concepts that occurred in the 1945–1955 time period This time span starts with the first quantitative neck growth model from Frenkel and ends with the quantitative shrinkage model from Kingery and Berg that includes several transport mechanisms
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