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Creep During Sintering of Porous Compacts
Author(s) -
RAHAMAN M.N.,
JONGHE L.C.,
HSUEH C.H.
Publication year - 1986
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.1151-2916.1986.tb04694.x
Subject(s) - dilatometer , creep , shrinkage , materials science , sintering , composite material , porosity , transient (computer programming) , grain boundary sliding , volume (thermodynamics) , diffusion , grain boundary , microstructure , thermal expansion , thermodynamics , physics , computer science , operating system
Creep during sintering of CdO powder compacts was studied in a loading dilatometer by applying a small, transient, uniaxial load to the compacts. After the load was removed, the axial shrinkage rate was lower, but the radial shrinkage rate was actually higher than that of a compact sintered under no load. This reduction in the axial shrinkage rate is more pronounced for longer transient loading times. The results provide further support for a mechanism of simultaneous creep and densification in which creep at constant volume occurs by diffusion‐controlled grain‐boundary sliding.