Deposition of aluminium silicate film on diamond by sol-gel techniques. (May 2015)

• Record Type: Journal Article
• Authors: Wang, Y. Z.; Liang, B. Y.; Zhang, W. X.; Liu, J. L.
• Is Part Of: Materials research innovations. Volume 19(2015)Supplement 5
• Page Start: S5-328
• Page End: S5-330
• Publication Date: 2015-05
• Subjects: Diamond -- Coating -- Sol-gel -- Film -- Aluminium silicate -- Oxidation resistance -- Surface morphology; Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891714Z.0000000001104
• Languages: English
• ISSNs: 1432-8917

Abstract

Abstract : Diamond particles were coated with aluminium silicate film by sol-gel techniques, and characterised by X-ray diffraction, scanning electron microscope, energy-dispersive spectroscope and Differential Scanning Calorimetry and Thermogravimetric Analysis (DSC-TG). It was shown that amorphous aluminium silicate thin film was obtained, which encapsulated the diamond particles completely. As a good barrier, this film protected the diamond with enhanced oxidation resistance. Specifically, the initial oxidation temperature of the aluminium silicate film-coated diamond in air atmosphere was 715°C, 85°C higher than that of the uncoated diamond.