Tribological behavior of YSZ based composite coatings containing Ag, Sb2O3 and Ag/Sb2O3 from 25 to 800 °C

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-07-24 DOI:10.1016/j.wear.2025.206275

Liuyang Bai , Haibo Zhang , Zhiwei Zhao , Shun Wang , Chunlong Guan , Xiaomiao Zhao , Suxuan Du , Huwei Sun

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引用次数: 0

Abstract

YSZ based composite coatings, containing Ag or Sb₂O₃ or Ag/Sb₂O₃, are fabricated using atmospheric plasma spraying technology. The phase composition, microstructure and mechanical properties are characterized. The influence of Ag, Sb₂O₃ and Ag/Sb₂O₃ on the tribological behavior of the YSZ based composite coatings sliding against Al₂O₃ ball was investigated from 25 to 800 °C. The results show that the introduced Ag in YSZ/Ag coating provides effective lubrication below 500 °C, while the presence of Sb₂O₃ deteriorates the wear behavior due to its volatilization and the deteriorative mechanical strength of YSZ/Sb₂O₃ coating. The YSZ/Ag/Sb₂O₃ coating with dual addition of Ag and Sb₂O₃ exhibits excellent friction and wear behavior in a broad temperature range. Such an improvement in tribological performance is attributed to the abundant supply of Ag covering on the worn surface. It is demonstrated that the diffusion channel of Ag increases due to the volatilization of Sb₂O₃ at high temperatures and the high porosity of the YSZ/Ag/Sb₂O₃ coating, which continuously provides lubricant Ag for the contact interface. The tribo-induced layer, composed of Ag, residual Sb₂O₃ and ZrO₂ wear debris, play a significant role in providing effective lubrication at elevated temperature.

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含Ag、Sb2O3和Ag/Sb2O3的YSZ基复合涂层在25 ~ 800℃的摩擦学行为

采用大气等离子喷涂技术制备了含有Ag或Sb2O3或Ag/Sb2O3的YSZ基复合涂层。对合金的相组成、显微组织和力学性能进行了表征。在25 ~ 800℃范围内，研究了Ag、Sb2O3和Ag/Sb2O3对YSZ基复合涂层与Al2O3球摩擦摩擦学行为的影响。结果表明：在500℃以下，在YSZ/Ag涂层中引入Ag提供了有效的润滑，而Sb2O3的存在由于其挥发而使YSZ/Sb2O3涂层的磨损性能恶化，机械强度下降。双添加Ag和Sb2O3的YSZ/Ag/Sb2O3涂层在较宽的温度范围内表现出优异的摩擦磨损性能。这种摩擦学性能的改善是由于磨损表面上有大量的银覆盖。结果表明，由于Sb2O3在高温下的挥发和YSZ/Ag/Sb2O3涂层的高孔隙率，Ag的扩散通道增加，为接触界面持续提供润滑剂Ag。由Ag、残余Sb2O3和ZrO2磨损碎屑组成的摩擦诱导层在高温下提供有效的润滑作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.