Properties of Al2O3–40 wt.% ZrO2 composite coatings from ultra-fine feedstocks by atmospheric plasma spraying
文献类型：期刊论文
| 作者 | Chen JM(陈建敏) ; Zhou HD(周惠娣); Chen JM(陈建敏); An YL(安宇龙)
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| 刊名 | Wear
 |
| 出版日期 | 2008 |
| 卷号 | 265页码:1642-1648 |
| 关键词 | Al2O3–ZrO2 composite coating Plasma spraying Microstructure Friction and wear behavior Wear mechanism |
| ISSN号 | 0043-1648 |
| 通讯作者 | 陈建敏 |
| 中文摘要 | In the present study, both ultra-fine and coarse Al2O3–40 wt.% ZrO2 grains were used as the starting materials to prepare ultra-fine structured and micro-structured Al2O3–40 wt.% ZrO2 composite coatings (coded as NZTA coating and MZTA coating, respectively) by atmospheric plasma spraying. The ultra-fine Al2O3–40 wt.% ZrO2 feedstocks for spraying were prepared by means of crushing sintered, starting from commercially availed powders of ultra-fine Al2O3 and ZrO2. The microstructures and phase compositions of the crushing sintered powders and the corresponding composites coatingswere investigated by means of scanning electron microscopy (SEM) and X-ray diffraction (XRD). The friction andwear behaviors of the composites coatings sliding against stainless-steel under dry friction conditions and at room temperature were investigated using an optimol SRV oscillating friction and wear tester. The wear mechanisms of the coatings were discussed based on the SEM observation of the worn surface morphologies and wear debris, and the elemental composition analysis of the wear debris by energy dispersive X-ray analysis as well. Results showed that aside from the typical splat lamellae, equiaxle grains were also observed in the Al2O3–40 wt.% ZrO2 composite coating made from the corresponding ultra-fine crushing sintered powders. The NZTA coatings had higher microhardness and better wear resistance than that of the MZTA coatings, which could be largely attributed to the better inter-splats bonding of the former. And the stainless-steel counterpart matched with the NZTA coatings had a smaller wear rate as well. Moreover, the two types of composites coatings were dominated by spalling and fracture as sliding against the stainless-steel counterpart, and the MZTA coatings experienced more severe worn surface damage at a larger load than the NZTA coatings tested under the same conditions,well corresponding to the difference in the wear resistance of the two types of composite coatings. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (Grant No. 50421502);the 973 Project (Grant No. 2007CB607601) |
| 语种 | 英语 |
| 公开日期 | 2013-03-28 |
| 源URL | [http://210.77.64.217/handle/362003/2724]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 兰州化学物理研究所_先进润滑与防护材料研究发展中心 |
| 通讯作者 | Chen JM(陈建敏); Chen JM(陈建敏) |
| 推荐引用方式 GB/T 7714 | Chen JM,Zhou HD,Chen JM,et al. Properties of Al2O3–40 wt.% ZrO2 composite coatings from ultra-fine feedstocks by atmospheric plasma spraying[J]. Wear,2008,265:1642-1648. |
| APA | 陈建敏,周惠娣,陈建敏,&安宇龙.(2008).Properties of Al2O3–40 wt.% ZrO2 composite coatings from ultra-fine feedstocks by atmospheric plasma spraying.Wear,265,1642-1648. |
| MLA | 陈建敏,et al."Properties of Al2O3–40 wt.% ZrO2 composite coatings from ultra-fine feedstocks by atmospheric plasma spraying".Wear 265(2008):1642-1648. |
入库方式： OAI收割
来源：兰州化学物理研究所
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