Journal
PHYSICAL REVIEW B
Volume 67, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.67.092105
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We present a small database of adhesion energies for Al/ceramic interfaces calculated using density functional methods. In total, 26 distinct interface geometries were examined, in which the ceramic component was varied amongst carbides (WC, VC), nitrides (VN, CrN, TiN), and oxides (alpha-Al2O3), while including variations in interfacial stacking sequence and ceramic termination (polar and nonpolar). We find that adhesion is smallest (largest) for those interfaces constructed from non-polar (polar) surfaces, regardless of ceramic component. Since the interfacial free energies of all interfaces are relatively small, we examine the extent to which adhesion can be described solely by contributions from the surface energies.
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