Article ID Journal Published Year Pages File Type
7889035 Ceramics International 2018 26 Pages PDF
Abstract
The properties of a TiC(0 1 0) surface, a TiB2(0 1 1¯ 0) surface, and TiC(0 1 0)/TiB2(0 1 1¯ 0) interfaces were investigated by first-principles calculations. The work of adhesion (Wad), the interface energy (γint), and the electronic structure of the interfaces were determined. The results show that the C-BS1-B1, C-TS-B2, and Ti-BS1-B1 interfaces are the most stable interfaces. Among all models, the C-TS-B2 interface is most stable and exhibits the highest Wad value (4.77 J/m2) and the lowest γint value (1.12 J/m2). All three stable interfaces exhibit strong covalent bonding due to the interfacial C-sp and B-sp orbital hybridization; the stable interfaces investigated in this study are as stable as the TiC(1 1 1)/TiB2(0 0 0 1) interface reported in a previous study.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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