Tribological Performance of Ultra-Hard Ceramic Composite Coatings Obtained through the Microplasma Oxidation

Shu Hua Li; Fu Chi Wang; Yu Jun Yin; Run Ze Yang; Cheng Wen Tan

doi:10.4028/www.scientific.net/KEM.368-372.1271

Paper Titles

Bond Strengths of Alumina-Glass and Zirconia-Glass Composites to Opaque-Dentine Porcelain
p.1258

In Vitro Biocompatibility Evaluations of Four Dental Ceramics
p.1261

Biological Performance of Dental Biphasic Calcium Phosphate Ceramics Modified by Cold Plasma
p.1264

Effect of SnO Coatings on the Bond Strength between Titanium and Porcelain
p.1268

Tribological Performance of Ultra-Hard Ceramic Composite Coatings Obtained through the Microplasma Oxidation
p.1271

Properties of Al₂O₃-TiO₂ Coating Prepared by Plasma Spraying with an Internally-Fed Powder System
p.1274

XPS Studies on ZrO₂ Thin Films Deposited on Glass Substrate by Sol-Gel
p.1277

Mechanical Properties of Nanostructured Zirconia Coatings Fabricated by Air Plasma Spraying
p.1280

Preparation of TiO₂-Ni Wear-Resistant Film on Metal Surface
p.1284

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Tribological Performance of Ultra-Hard Ceramic Composite Coatings Obtained through the Microplasma Oxidation

Abstract:

Ceramic oxidation coating of approximately 60 m thick was prepared on a Ly12 alloy substrate by micro-plasma oxidation in an alkali-silicate electrolytic solution. Coating thickness was measured during coating formation. The influence of current density, electrolyte temperature and inter-electrode distance on coating kinetics was investigated. Microstructure and phase compositions were analyzed. The micro-hardness of the coating was also measured. The tribological performance of the coatings was evaluated using a dry sand abrasion test. In addition, the results are compared to detonationsprayed alumina coating.