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Effect of Pore Distribution on Microstructure Development: I, Matrix Pores
Author(s) -
ZHAO JUNHONG,
HARMER MARTIN P.
Publication year - 1988
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.1151-2916.1988.tb05826.x
Subject(s) - microstructure , materials science , sintering , grain growth , grain size , growth rate , particle size distribution , abnormal grain growth , matrix (chemical analysis) , composite material , mineralogy , chemical engineering , particle size , chemistry , mathematics , engineering , geometry
A model has been developed to describe the effect of the matrix (first‐generation) pore distribution on microstructure development in the final stages of sintering. A model of simultaneous densification and grain growth was used to predict the effects of the number of pores per grain and the pore size distribution on microstructure evolution. Increasing the number of pores per grain was predicted to increase the densification rate, the grain growth rate, and the relative densification rate/grain growth rate ratio. Narrowing the pore size distribution was predicted to inhibit grain growth initially and to increase the densification rate indirectly. Overall, the pore distribution was predicted to have a strong influence on microstructure development and sintering kinetics.