Preparation and Characterization of Anti-Oxidation Coatings for Sliding Plates

Abstract:

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High-temperature anti-oxidation coating was prepared by a milling process, which mainly composed of flake graphite and hexagonal BN (hBN). The coating was brushed on the sliding plate surface and dried in air for 24 h, The surface of the sliding plate painted was smooth and without peeling, suggesting a strong bonding strength. The samples were heated at 1200 °C for 20 min to evaluate the mass-loss rate. The mass-loss rate of the slide gate painted is 3.7%, less than the un-painted 5.1%. XRD and SEM techniques were used to characterize the as-heated samples. The results showed that the surface of the slide plate painted was skin rolling. And the graphite reacted with oxygen at an elevated temperature to reduce oxygen concentration. In addition, hBN also reacted with oxygen to form B2O3, which also has an oxygen-resistant role in the sliding plates. These coatings exhibited unique oxidation-resistant properties, and the service life of the coated sliding plates was obviously improved.

Info:

Periodical:

Advanced Materials Research (Volumes 105-106)

Edited by:

Wei Pan and Jianghong Gong

Pages:

432-434

DOI:

10.4028/www.scientific.net/AMR.105-106.432

Citation:

L. N. Wang et al., "Preparation and Characterization of Anti-Oxidation Coatings for Sliding Plates ", Advanced Materials Research, Vols. 105-106, pp. 432-434, 2010

Online since:

April 2010

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Price:

$35.00

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