Xibo Shao, Xun Wu, Hongliang Liu, Pei Wang, Cheng-feng Du, Long Wang, Haifeng Wang, Jun Yang
{"title":"纳米氧化锌和层状 GO 对基于 MoS2 的异质结复合润滑涂层高温摩擦学性能的影响","authors":"Xibo Shao, Xun Wu, Hongliang Liu, Pei Wang, Cheng-feng Du, Long Wang, Haifeng Wang, Jun Yang","doi":"10.1007/s10853-024-10303-5","DOIUrl":null,"url":null,"abstract":"<div><p>As an excellent solid lubricant in vacuum and inert gas environment, molybdenum disulfide (MoS<sub>2</sub>) is easy to be oxidized in high temperature, which leads to serious deterioration or even failure of lubricating performance. The introduction of doped phase or composite can improve the high temperature lubricating performance of MoS<sub>2</sub>-based lubricating coating to some extent. In this work, the effect of nano-particles zinc oxide (ZnO) and layered graphene oxide (GO) on the high temperature (400, 450 and 500 °C) tribological properties of MoS<sub>2</sub>-based composite lubricating coatings were studied. It was found that the tribological performance of MoS<sub>2</sub>-ZnO composite coating were the best for almost all test conditions, and the average friction coefficient and wear rate were about 0.25 ~ 0.27 and 4 ~ 6 × 10<sup>−5</sup> mm<sup>3</sup>/Nm, respectively. The promising tribological performance of MoS<sub>2</sub>-ZnO composite coating was attributed to the ZnO that mitigated the oxidation of MoS<sub>2</sub>, and the formation of ZnS. It is the formed ZnS, nano-ZnO and a small amount of MoS<sub>2</sub> that provided synergistic lubrication. However, the introduction of layered GO deteriorated the tribological properties of the MoS<sub>2</sub>-based composite coating, due to the high-temperature decomposition of GO and the formation of hard abrasive particles. The results can provide reference for the design and preparation of MoS<sub>2</sub>-based composite lubricating coating.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 42","pages":"19855 - 19874"},"PeriodicalIF":3.5000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of nano-particles ZnO and layered GO on high temperature tribological performance of MoS2-based heterojunction composite lubricating coating\",\"authors\":\"Xibo Shao, Xun Wu, Hongliang Liu, Pei Wang, Cheng-feng Du, Long Wang, Haifeng Wang, Jun Yang\",\"doi\":\"10.1007/s10853-024-10303-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>As an excellent solid lubricant in vacuum and inert gas environment, molybdenum disulfide (MoS<sub>2</sub>) is easy to be oxidized in high temperature, which leads to serious deterioration or even failure of lubricating performance. The introduction of doped phase or composite can improve the high temperature lubricating performance of MoS<sub>2</sub>-based lubricating coating to some extent. In this work, the effect of nano-particles zinc oxide (ZnO) and layered graphene oxide (GO) on the high temperature (400, 450 and 500 °C) tribological properties of MoS<sub>2</sub>-based composite lubricating coatings were studied. It was found that the tribological performance of MoS<sub>2</sub>-ZnO composite coating were the best for almost all test conditions, and the average friction coefficient and wear rate were about 0.25 ~ 0.27 and 4 ~ 6 × 10<sup>−5</sup> mm<sup>3</sup>/Nm, respectively. The promising tribological performance of MoS<sub>2</sub>-ZnO composite coating was attributed to the ZnO that mitigated the oxidation of MoS<sub>2</sub>, and the formation of ZnS. It is the formed ZnS, nano-ZnO and a small amount of MoS<sub>2</sub> that provided synergistic lubrication. However, the introduction of layered GO deteriorated the tribological properties of the MoS<sub>2</sub>-based composite coating, due to the high-temperature decomposition of GO and the formation of hard abrasive particles. 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Effect of nano-particles ZnO and layered GO on high temperature tribological performance of MoS2-based heterojunction composite lubricating coating
As an excellent solid lubricant in vacuum and inert gas environment, molybdenum disulfide (MoS2) is easy to be oxidized in high temperature, which leads to serious deterioration or even failure of lubricating performance. The introduction of doped phase or composite can improve the high temperature lubricating performance of MoS2-based lubricating coating to some extent. In this work, the effect of nano-particles zinc oxide (ZnO) and layered graphene oxide (GO) on the high temperature (400, 450 and 500 °C) tribological properties of MoS2-based composite lubricating coatings were studied. It was found that the tribological performance of MoS2-ZnO composite coating were the best for almost all test conditions, and the average friction coefficient and wear rate were about 0.25 ~ 0.27 and 4 ~ 6 × 10−5 mm3/Nm, respectively. The promising tribological performance of MoS2-ZnO composite coating was attributed to the ZnO that mitigated the oxidation of MoS2, and the formation of ZnS. It is the formed ZnS, nano-ZnO and a small amount of MoS2 that provided synergistic lubrication. However, the introduction of layered GO deteriorated the tribological properties of the MoS2-based composite coating, due to the high-temperature decomposition of GO and the formation of hard abrasive particles. The results can provide reference for the design and preparation of MoS2-based composite lubricating coating.
期刊介绍:
The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.