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Driving Force for Sintering of Particles with Anisotropic Surface Energies
Author(s) -
Searcy Alan W.
Publication year - 1985
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.1151-2916.1985.tb11526.x
Subject(s) - sintering , materials science , surface energy , enhanced data rates for gsm evolution , dislocation , gibbs free energy , free surface , anisotropy , composite material , condensed matter physics , mechanics , thermodynamics , optics , physics , telecommunications , computer science
Crystalline aggregates at constant temperature and pressure are unstable toward shape changes for which , where δG is a dzgerential change in the Gibbs free energy, σ i A i is the free energy of surface or interface i, and γ i h i is the free energy of edge, ledge, or dislocation defect i. The expression reduces to the familiar expression for the driving force for early‐stage sintering. Line defects play central roles in driving the sintering of crystalline solids.