Influence of Multiple Heterogeneities on Sintering Rates
Journal
Journal of the American Ceramic Society
Journal Volume
69
Journal Issue
4
Date Issued
1986
Author(s)
Abstract
The sintering rate of a powder compact containing heterogeneities was calculated. The calculations reveal a strong retardation of sintering in the presence of nonsinterable agglomerates because of the development of a hydrostatic tensile stress. The variation in sintering rate with volume fraction is shown to be highly nonlinear, such that appreciable effects obtain even for 1% agglomerated powder. Specific results are calculated using constitutive laws pertinent to Al 2 O 3 .
SDGs
Type
journal article