Tribological of Eu-doped WO3 coated with SiO2 transfer film formation on sliding surface

IF 2.4 4区材料科学 Q3 MATERIALS SCIENCE, COATINGS & FILMS

Surface Engineering Pub Date : 2022-12-02 DOI:10.1080/02670844.2023.2172705

S. Xiong, Ruo-tian Wang

{"title":"Tribological of Eu-doped WO3 coated with SiO2 transfer film formation on sliding surface","authors":"S. Xiong, Ruo-tian Wang","doi":"10.1080/02670844.2023.2172705","DOIUrl":null,"url":null,"abstract":"ABSTRACT Europium nitrate, ammonium tungstate and hexadecyl trimethyl ammonium bromide were used, and Eu-doped WO3 (WO3:Eu3+) nanopowder was synthesized by the micro-emulsion method. Tetraethyl silicate was hydrolysed into SiO2 and WO3:Eu3+ nanopowder coated with SiO2 (SiO2/WO3:Eu3+) was obtained. The microstructure and morphology of the prepared nano-SiO2/WO3:Eu3+ powders were characterized by XRD, SEM, TEM and HRTEM. Results showed that the prepared nano-SiO2/WO3:Eu3+ powders composed of WO3 of monoclinic and SiO2 of amorphous, which was spherical and granular, and the grain size reaches 50 nm. The tribological behaviour of nano-SiO2/WO3:Eu3+ as extreme pressure and anti-wear additive in the water-based fluid was studied by a four-ball machine. The results demonstrate that nano-SiO2/WO3:Eu3+ exhibits superior load-bearing capacity, anti-wear and anti-friction performance in water-based fluid, especially when the optimal concentration of nano-SiO2/WO3:Eu3+ is 0.4 wt-%. WSD, COF and wear volume of the nano-SiO2/WO3:Eu3+ decreased by 62.43%, 30.20% and 67.34%, respectively, compared with that of the water-based fluid.","PeriodicalId":21995,"journal":{"name":"Surface Engineering","volume":"38 1","pages":"930 - 938"},"PeriodicalIF":2.4000,"publicationDate":"2022-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Engineering","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/02670844.2023.2172705","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}

引用次数: 1

Abstract

ABSTRACT Europium nitrate, ammonium tungstate and hexadecyl trimethyl ammonium bromide were used, and Eu-doped WO3 (WO3:Eu3+) nanopowder was synthesized by the micro-emulsion method. Tetraethyl silicate was hydrolysed into SiO2 and WO3:Eu3+ nanopowder coated with SiO2 (SiO2/WO3:Eu3+) was obtained. The microstructure and morphology of the prepared nano-SiO2/WO3:Eu3+ powders were characterized by XRD, SEM, TEM and HRTEM. Results showed that the prepared nano-SiO2/WO3:Eu3+ powders composed of WO3 of monoclinic and SiO2 of amorphous, which was spherical and granular, and the grain size reaches 50 nm. The tribological behaviour of nano-SiO2/WO3:Eu3+ as extreme pressure and anti-wear additive in the water-based fluid was studied by a four-ball machine. The results demonstrate that nano-SiO2/WO3:Eu3+ exhibits superior load-bearing capacity, anti-wear and anti-friction performance in water-based fluid, especially when the optimal concentration of nano-SiO2/WO3:Eu3+ is 0.4 wt-%. WSD, COF and wear volume of the nano-SiO2/WO3:Eu3+ decreased by 62.43%, 30.20% and 67.34%, respectively, compared with that of the water-based fluid.

查看原文本刊更多论文

掺铕WO3包覆SiO2在滑动表面形成转移膜的摩擦学研究

摘要以硝酸铕、钨酸铵和十六烷基三甲基溴化铵为原料，采用微乳液法制备了铕掺杂WO3 (WO3:Eu3+)纳米粉体。将硅酸四乙酯水解成SiO2，得到包覆SiO2的WO3:Eu3+纳米粉体(SiO2/WO3:Eu3+)。采用XRD、SEM、TEM和HRTEM对制备的纳米sio2 /WO3:Eu3+粉体的微观结构和形貌进行了表征。结果表明:制备的纳米SiO2/WO3:Eu3+粉体由单斜晶WO3和非晶SiO2组成，呈球形和粒状，晶粒尺寸达到50 nm;采用四球机研究了纳米sio2 /WO3:Eu3+作为极压抗磨添加剂在水基流体中的摩擦学行为。结果表明:纳米sio2 /WO3:Eu3+在水基流体中表现出优异的承载性能、抗磨性能和摩擦性能，特别是当纳米sio2 /WO3:Eu3+的最佳浓度为0.4 wt-%时;与水基液相比，纳米sio2 /WO3:Eu3+的WSD、COF和磨损体积分别降低了62.43%、30.20%和67.34%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Surface Engineering 工程技术-材料科学：膜

CiteScore

5.60

自引率

14.30%

发文量

审稿时长

2.3 months

期刊介绍： Surface Engineering provides a forum for the publication of refereed material on both the theory and practice of this important enabling technology, embracing science, technology and engineering. Coverage includes design, surface modification technologies and process control, and the characterisation and properties of the final system or component, including quality control and non-destructive examination.