Microstructure and properties of plasma sprayed Al2O3/TiO2 nano ceramic composite coatingsChinese Full Text
SONG Ren-guo1,2,WANG Chao1,2,JIANG Yan1,2,LU Guo1,2(1.School of Materials Science and Engineering,Changzhou University,Changzhou 213164,China; 2.Key Laboratory of Advanced Metal Materials of Changzhou City,Changzhou University,Changzhou 213164,China)
Abstract: The microstructure and properties of Al2O3/TiO2 nano ceramic composite coatings prepared by plasma spraying were investigated by means of X-ray diffraction（XRD）,scanning electron microscopy（SEM）,micro-hardness tester and frictional wear testing machine.The results show that both α-Al2O3 and γ-Al2O3 phases are observed in the as-sprayed coatings,and the content of γ-Al2O3 phase increases with increasing the spraying power,while rutile TiO2 phase exists in the coatings.The as-sprayed coatings are composed of bimodal structure,fully melted splat and partially melted particulate structure.Effects of both plasma spraying power and TiO2 content on hardness and wear resistance of the as-sprayed coatings are investigated.
- DOI：
10.13289/j.issn.1009-6264.2012.s2.029
- Series：
- Subject：
- Classification Code：
TG174.4
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