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

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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.

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Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1271-1273

Citation:

S. H. Li et al., "Tribological Performance of Ultra-Hard Ceramic Composite Coatings Obtained through the Microplasma Oxidation", Key Engineering Materials, Vols. 368-372, pp. 1271-1273, 2008

Online since:

February 2008

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$38.00

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[3] A.L. Yerokhin, X. Nie, A. Leyland, A. Matthews: Surf. Coat. Technol. Vol. 130 (2000), p.195.

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