Title: Molecular-orbital model for metal-sapphire interfacial strength
Abstract: Self-consistent-field X-Alpha scattered-wave cluster molecular-orbital models have been constructed for transition and noble metals (Fe, Ni, Cu, and Ag) in contact with a sapphire (Al2O3) surface. It is found that a chemical bond is established between the metal d-orbital electrons and the nonbonding 2p-orbital electrons of the oxygen anions on the Al2O3 surface. An increasing number of occupied metal-sapphire antibonding molecular orbitals explains qualitatively the observed decrease of contact shear strength through the series Fe, Ni, Cu, and Ag.
Publication Year: 1982
Publication Date: 1982-10-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 194
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot