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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.
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Citations
Cited by
Campbell, C. T. (1997) · Surface Science Reports · doi:10.1016/s0167-5729(96)00011-8 · Cited by 1,619
The theory of metal - ceramic interfaces
Finnis, M. W. (1996) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/8/32/003 · Cited by 622
Tian, X., Wang, Y., Zeng, Z., Dai, L., Xu, J., Cobb, K., Ke, L., Zou, R., Liu, Y., & Ruan, R. (2022) · Green Chemistry · doi:10.1039/d1gc04537g · Cited by 128
Metadata
- Authors
- Johnson, K. H., & Pepper, S. V.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 1982-10-01
- Volume
- 53
- Issue
- 10
- Pages
- 6634-6637
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W2052962652
- Cited by
- 198
- References
- 0
- FWCI
- 2.49
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Molecular-orbital model for metal-sapphire interfacial strength. https://app.cochat.ai/papers/10.1063/1.330095
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- Johnson, K. H., & Pepper, S. V. (1982). Molecular-orbital model for metal-sapphire interfacial strength. Journal of Applied Physics. https://doi.org/10.1063/1.330095
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
