Premium
Interface Character Distributions in WC–Co Composites
Author(s) -
Kim ChangSoo,
Massa Ted R.,
Rohrer Gregory S.
Publication year - 2008
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.1551-2916.2007.02226.x
Subject(s) - materials science , grain boundary , volume fraction , carbide , composite material , grain size , volume (thermodynamics) , anisotropy , twist , microstructure , geometry , mathematics , thermodynamics , physics , quantum mechanics
The geometric and crystallographic characteristics of interfaces in WC–Co composites with a range of grain sizes and carbide volume fractions have been comprehensively characterized. The carbide crystals are most frequently terminated by (0001) andsurfaces. The average number of carbide vertices per grain and the basal‐to‐prismatic face area ratio of the WC–Co interfaces increase with the carbide volume fraction. The three most frequently occurring WC/WC grain boundaries are 90° twist boundaries about, 30° twist boundaries about [0001], and asymmetric 90° boundaries about . The boundary populations do not vary with grain size or carbide volume fraction, suggesting that they are determined by the grain boundary energy anisotropy.