A Study on the Deposition of Al2O3 Coatings on Polymer Substrates by a Plasma Spray/Micro-Arc Oxidation Two-Step Method

作者：Sun Guanhong^*; He Xiaodong; Jiang Jiuxing; Sun Yue; Zhong Yesheng

来源：Journal of Thermal Spray Technology, 2013, 22(1): 27-35.

DOI：10.1007/s11666-012-9865-8

• adhesion
• ceramics
• composite materials
• micro-arc oxidation
• plasma spray

To increase the wear resistance of polymer matrix composites, alumina coatings were deposited on polymer substrates by a two-step method combining plasma spraying and micro-arc oxidation. The microstructures and phase compositions of the processed coatings were investigated for different treatment times. Uniformly distributed pores were found in addition to the presence of various coral-like structures and floccules on the surface of the coatings. The presence of alpha-Al2O3 and gamma-Al2O3 phases was identified by XRD. The distribution of alumina was analyzed by EDS and is discussed. The maximum bond strength of the coatings was found to be 5.89 MPa. There was little thermal damage in the polymer substrates after the coatings were produced.

• 出版日期2013-2
• 单位哈尔滨工业大学