Transient stresses in bimodal compacts during sintering
Journal
Acta Metallurgica
Journal Volume
34
Journal Issue
7
Pages
1467-1471
Date Issued
1986
Author(s)
Abstract
A method is described and used to evaluate the transient stresses in a sintering compact of ZnO containing a hard, dense dispersion of SiC. A hard second phase can severely limit densification rates by generating a mean hydrostatic stress, σh, which opposes the compressive sintering stress of the matrix. σh rapidly increases with increasing volume fraction, f{hook}, of the second phase. The interface stress, σi., at the ZnO SiC boundary increases with decreasing f{hook}, σi can attain large values, especially in the intermediate stage of sintering. The effect of these stresses on microstructural development is considered. © 1986.
SDGs
Type
journal article