The self-sense monitoring of coating wear by in situ SiO2-coated SrAl2O4: Eu2+, Dy3+ luminescent particles

doi:10.1088/1742-6596/843/1/012061

	The self-sense monitoring of coating wear by in situ SiO2-coated SrAl2O4: Eu2+, Dy3+ luminescent particles
	Li, Wensheng; He, Ling; Hu, Chunxia; Yang, XiaoTian
	2017
卷号	843
DOI	10.1088/1742-6596/843/1/012061
英文摘要	Monitoring of coating health was achieved by embedding sensor materials SrAl2O4: Eu2+, Dy3+ in tribological coatings, and luminescence spectra of sensor materials were used for damage sensing by monitoring the intensity of the spectra. When the light emitting from coating disappeared, it indicated the coating wearied off and the substrate exposed. But emission intensity of the SrAl2O4: Eu2+, Dy3+ in tribological coating was quenched in preparation process which will weaken the effect of coating instructions. In this work, SiO2-coated SrAl2O4: Eu2+, Dy3+ were coupled with Cu-14Al-X alloy powders to form sensor composite coating by supersonic plasma spraying. The composite coatings before and after SiO2-coating were compared of phase composition, microstructure, luminescence properties and tribological performance. The composite coating shows not only good resistance to wear but also exhibits strong green light emitting under UV light. The SiO2-coating could prevent phosphors quenching due to high temperature in the supersonic plasma spraying process, and could repair the wear surface. The composite coating with SiO2-coated SrAl2O4: Eu2+, Dy3+ particles had very stable friction coefficient, When the coating ratio of SiO2 was 10% for SrAl2O4: Eu2+, Dy3+ particles, the luminescent properties and friction property of composite was optimal.
会议录	6TH INTERNATIONAL CONFERENCE ON FRACTURE FATIGUE AND WEAR (FFW)
会议录出版者	IOP PUBLISHING LTD
会议录出版地	DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
语种	英语
资助项目	National Natural Science Foundation of China[51674130] ; International Science and Technology Cooperation Project[2015DFR51090]
WOS研究方向	Engineering ; Mechanics ; Physics
WOS记录号	WOS:000412799100061
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36263]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室学报编辑部
通讯作者	Li, Wensheng
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Wensheng,He, Ling,Hu, Chunxia,et al. The self-sense monitoring of coating wear by in situ SiO2-coated SrAl2O4: Eu2+, Dy3+ luminescent particles[C]. 见:.