Microstructure and infrared emissivity property of coating containing TiO2 formed on titanium alloy by microarc oxidation

被引：78
|
作者：
Wang, Z. W. [1 ]
Wang, Y. M. [1 ]
Liu, Y. [2 ]
Xu, J. L. [3 ]
Guo, L. X. [1 ]
Zhou, Y. [1 ]
Ouyang, J. H. [1 ]
Dai, J. M. [1 ]
机构：
[1] Harbin Inst Technol, Inst Adv Ceram, Harbin 150001, Peoples R China
[2] Jilin Univ, Minist Educ, Key Lab Bion Engn, Changchun 130025, Peoples R China
[3] Shanghai Spaceflight Precis Machinery Res Inst, Shanghai 201600, Peoples R China
来源：
CURRENT APPLIED PHYSICS | 2011年 / 11卷 / 06期
关键词：
Titanium alloy; Coating; Microstructure; Infrared emissivity; WAVE SCATTERING; FILMS; SURFACE; OXIDE;
D O I：
10.1016/j.cap.2011.04.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ceramic coatings containing TiO2 were formed on Ti6Al2Zr1Mo1V alloy surface by microarc oxidation (MAO) method. The microstructure, phase and chemical composition of the coatings were analyzed by SEM, XRD and EDS techniques. The coating mainly consists of rutile TiO2 and a small amount of anatase TiO2. The infrared emissivity values of coated and uncoated titanium samples when exposed to 700 degrees C were tested. It was found that the coating exhibits a higher infrared emissivity value (about 0.9) in the wavelength range of 8-14 mu m than that of the uncoated titanium alloy, although which shows a slight increase from 0.1 to 0.3 with increasing exposure time at 700 degrees C. The relatively high infrared emissivity value of the MAO coating is possibly attributed to the photon emission from the as formed TiO2 phase. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：1405 / 1409
页数：5
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