Journal
PHYSICA B-CONDENSED MATTER
Volume 613, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.physb.2021.412993
Keywords
Wetting mechanism; First-principles calculation; Metal matrix composite; Bonding strength
Categories
Funding
- National Natural Science Foundation of China [51575174]
- Natural Science Foundation of Hunan Province [2020JJ4205]
- Changsha Science and Technology Project [kq1907108]
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This study investigated the wettability mechanism of Cu3Ni, Cu3Sn, and Cu3Zn on diamond surfaces using density functional theory (DFT). The results suggest that the wettability is mainly affected by the enrichment and loss of electronic pair pattern on diamond surfaces, as well as the hybridization of p orbital electronic between Sn atom and C atom.
Improving the wettability of copper alloy and diamond is still a challenging task. This paper presents an investigation of the wettability mechanism of Cu3Ni, Cu3Sn, Cu3Zn on diamond surfaces using density functional theory (DFT). The results of the electronic structure show that the wettability mechanism of copper alloy on diamond surfaces is attributed to the enrichment and loss of the electronic pair pattern on the diamond surfaces. Furthermore, partial density of state (PDOS) results implicate the enrichment and loss of electronic pair pattern on diamond surfaces involves the p orbital electronic hybridization. The more the p orbital electronic hybridization of Sn atom and C atom is involved, the better the wettability of Cu3Sn on diamond surfaces will be compared to Cu3Ni, Cu3Zn on the diamond surfaces, which is in good agreement with the results of interface energy.
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