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Self-sensing tribological coating with phosphor particles for wear indicator

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摘要 Monitoring of coating health was achieved by embedding sensor materials(MAl_(2)O_(4):Eu^(2+),Dy^(3+),M=Sr,Ba)in tribological coating.When the luminescence disappears under ultraviolet(UV)light,it means that the functional coating is worn out and that recoating is needed.In this work,four types of alloy(Cu-14Al-X,Cu,Cu-Al,Al)composite coatings were investigated by vacuum pres sure-as sis ted sintering method.The composite coatings with different copper-aluminium alloy matrixes were compared by phase composition,microstructure,luminescence properties and tribological performance.The results indicate that the Cu-14Al-X matrix composite coating shows not only good resistance to wear but also exhibits strong green light emitting under ultraviolet(UV)light.It is the best wear-resistant self-sensitive coating which has potential industrial value.When the coating wore or broke,the emitting intensity will decrease or disappear.
出处 《Rare Metals》 SCIE EI CAS CSCD 2023年第7期2462-2469,共8页 稀有金属(英文版)
基金 financially supported by the National Natural Science Foundation of China(No.51674130) Natural Science Fund of Gansu Province of China(No.1508RJZA049) the International Science and Technology Cooperation Projects(No.2015DFR51090)。
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