Comparison of Sintering Mechanisms in Some Carbides, Oxides, and Metals

  • H. J. Oel


Powder compacts were sintered for various times and temperatures, and grain size, pore size, density, and other properties were measured. The experimentally determined values for grain growth and pore reduction were compared with theoretical formulas which could be derived mainly from thermodynamics. Thus, a deeper insight into the sintering mechanism of the substances under investigation was obtained, and it could be shown which were the predominant parameters. It was proven that the most important of these parameters were surface and grain boundary energies and diffusion and grain growth coefficients. On the basis of these inherent material properties, the sintering behavior of the investigated substances—all of which were high-melting and brittle— could be explained and compared.


Pore Radius Boundary Energy Sinter Behavior Growth Coefficient Sinter Mechanism 
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Copyright information

© Metal Powder Industries Federation and The Metallurgical Society of AIME 1966

Authors and Affiliations

  • H. J. Oel
    • 1
  1. 1.Max-Planck-Institut für SilikatforschungWürzburgGermany

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