中文版 English
Position:首页 > Technology  > Coating property

Characterization of annealed pulsed laser deposited (PLD) thin films of cesium oxythiomolybdate (Cs2MoOS3)

Time:2019-11-27 20:26:41  From:  Author:

 Cesium oxythiomolybdate (Cs2MoOS3) is under consideration as a high temperature solid lubricant for silicon nitride bearings .However, Cs2MoOS3 oxidizes below the proposed maximum use temperature of 800, and the oxidation process is complex. King and Asmerom were the first to use Cs2MoOS3 as a lubricant, and noted that Cs2MoOS3 changes color from its original bright red-orange to a white powder during high temperature testing, indicating a change in chemical composition .Strong et al. previously showed that oxidation of Cs2MoOS3 is complex, leading to a variety of products in the desired application range of 400800 8C including: Cs2SO4, which further decomposes to cesium oxides and SOx gas; Cs2MoO4 and other complex cesium molybdates; and MoO3. Cesium oxythiomolybdate-based lubricants have been applied by burnishing, mixing in greases, continuous powder feeding, and matrix binding. Burnished powders and applied greases need to be replenished often. Continuously supplied powders require a supply system and consume a significant amount of powder over time. Bonded coatings may exhibit poor adhesion to the substrate. A method of depositing Cs2MoOS3 coatings with precise thickness, good adhesion, and lubricious chemistry was desired

114_副本.jpg


本文由桑尧热喷涂网收集整理。本站文章未经允许不得转载;如欲转载请注明出处,北京桑尧科技开发有限公司网址:http://www.sunspraying.com/

Support
返回首页
Home page
发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表
Information
Article
    无相关信息
Update
Hot