Influence of Diamond Particles Coated with TiO2 Film on Wettability of Vitrified Bond and Transverse Rupture Strength (TRS) of Vitrified Bond Composites
In: Journal of Materials Engineering and Performance, Jg. 25 (2016-05-11), S. 2282-2287
Online
unknown
Zugriff:
TiO2 films were prepared on the surface of the diamond particles using a classical sol-gel method. The results showed that the TiO2 covered on the diamond surface as a rough and dense film with anatase phase, and tightly combined with the diamond substrates via the Ti-O-C bond. The initial oxidation temperature and compression strength of diamond were improved to 725 °C and 23.8 N with TiO2 film coated. TiO2 film increased the roughness of the diamond surface, promoted its mutual solubility, and formed the chemical bonding (Ti-O-Si) between the vitrified bond and the diamond. Therefore, the TiO2 film decreased the interface energy of the diamond, and promoted the wetting angle of vitrified bond with diamond to 36.7°. As a result, the TRS of vitrified bond diamond composites was increased to 76.3 MPa.
| Titel: |
Influence of Diamond Particles Coated with TiO2 Film on Wettability of Vitrified Bond and Transverse Rupture Strength (TRS) of Vitrified Bond Composites
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| Autor/in / Beteiligte Person: | Song, Dongdong ; Li, Jian-wei ; Hu, Weida ; Wan, Long ; Liu, Xiaopan |
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| Zeitschrift: | Journal of Materials Engineering and Performance, Jg. 25 (2016-05-11), S. 2282-2287 |
| Veröffentlichung: | Springer Science and Business Media LLC, 2016 |
| Medientyp: | unknown |
| ISSN: | 1544-1024 (print) ; 1059-9495 (print) |
| DOI: | 10.1007/s11665-016-2099-z |
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