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Coarsening in a Viscous Matrix
Author(s) -
Scherer George W.
Publication year - 1998
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1998.tb02294.x
Subject(s) - log normal distribution , materials science , slurry , capillary action , matrix (chemical analysis) , composite material , viscous liquid , distribution (mathematics) , particle (ecology) , particle size distribution , mechanics , particle size , mineralogy , chemistry , mathematics , geology , physics , mathematical analysis , statistics , oceanography
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 large 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.