When a viscous material is three-dimensionally constrained (as when a gel or slurry of glass is infiltrated into the interstices of a particle packing), heat treatment leads to coarsening of the pore-size distribution, rather than densification. The smaller pores generate greater capillary pressure; therefore, they shrink and force the larger pores to expand. In this article, the kinetics of coarsening are analyzed, and sample calculations are performed for a body with a lognormal distribution of pore sizes.
|Original language||English (US)|
|Number of pages||6|
|Journal||Journal of the American Ceramic Society|
|State||Published - Jan 1 1998|
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry