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Crack Propagation Method for Measuring Grain Boundary Energies in Brittle Materials
Author(s) -
CLASS W. H.,
MACHLIN E. S.
Publication year - 1966
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.1151-2916.1966.tb13269.x
Subject(s) - grain boundary , twist , materials science , surface energy , brittleness , cleavage (geology) , boundary (topology) , measure (data warehouse) , surface (topology) , condensed matter physics , curvature , mineralogy , thermodynamics , composite material , geometry , chemistry , microstructure , physics , fracture (geology) , mathematical analysis , mathematics , database , computer science
A cleavage technique was used to measure the surface free energy and the grain boundary energy for twist boundaries of varying twist angles in potassium chloride. The results for the surface energy and its temperature dependence are in good agreement with theory and experiment. Based in part on this agreement and the measured misfit orientation dependence, the grain boundary energy values obtained are concluded to be reasonable.