Surface Engineering Design of Alumina/Molybdenum Fibrous Monolithic Ceramic to Achieve Excellent Lubrication in a High Vacuum Environment | |
Department | 先进润滑与防护材料研究发展中心 |
Su YF(苏云峰)1,2; Fan HZ(樊恒中)1; Zhang YS(张永胜)1; Hu TC(胡天昌)1; Hu LT(胡丽天)1 | |
2018 | |
Source Publication | Tribology Letters |
Volume | 66Issue:2Pages:1-8 |
Abstract | Al2O3/Mo fibrous monolithic ceramics are potential candidates for space applications because of their excellent mechanical properties and low density. This study aims at achieving low friction and long life of this material in a high vacuum environment. Three-dimensional composite-lubricating layers were fabricated by considering texture pattern as storage dimples and MoS2 synthesized via hydrothermal method as lubricant. The tribological properties were studied sliding against Si3N4 ceramic and GCr15 bearing steel balls under high vacuum condition. Results showed that the lubricating properties of the Al2O3/Mo fibrous monolithic ceramics were improved greatly by the micro-texture and MoS2 solid lubricant; the friction coefficients were as low as approximately 0.08 and 0.04, respectively, when Si3N4 ceramic and GCr15 bearing steel balls acted as the pairing materials. It was also demonstrated that the low friction coefficient can be realized with various normal loads and sliding speeds, indicating the composite-lubricating layers have good adaptation of working conditions. This excellent performance of the material is mainly because of MoS2 stored in dimples can be easily dragged onto the friction surface to form lubricating and transferring films during the friction process. This work is an extension of studies that were previously published in Tribology Letters journal. |
Keyword | Space Ceramic Composite Friction-reducing Surface Modification Molybdenum Disulfide |
Subject Area | 材料科学 ; 材料失效与保护 |
MOST Discipline Catalogue | 工学 ; 工学::材料科学与工程(可授工学、理学学位) |
Indexed By | SCI |
If | 2.182 |
Language | 英语 |
compositor | 第一作者单位 |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/24214 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Zhang YS(张永胜); Hu LT(胡丽天) |
Affiliation | 1.中科院兰州化学物理研究所 2.中国科学院大学 |
Recommended Citation GB/T 7714 | Su YF,Fan HZ,Zhang YS,et al. Surface Engineering Design of Alumina/Molybdenum Fibrous Monolithic Ceramic to Achieve Excellent Lubrication in a High Vacuum Environment[J]. Tribology Letters,2018,66(2):1-8. |
APA | Su YF,Fan HZ,Zhang YS,Hu TC,&Hu LT.(2018).Surface Engineering Design of Alumina/Molybdenum Fibrous Monolithic Ceramic to Achieve Excellent Lubrication in a High Vacuum Environment.Tribology Letters,66(2),1-8. |
MLA | Su YF,et al."Surface Engineering Design of Alumina/Molybdenum Fibrous Monolithic Ceramic to Achieve Excellent Lubrication in a High Vacuum Environment".Tribology Letters 66.2(2018):1-8. |
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File Name/Size | DocType | Version | Access | License | ||
10.1007_s11249-018-1(2808KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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