| Microstructure and preparation of nano S-W-S new solid lubrication system |
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| 作者姓名： | 韦 钦 罗文东 孙克辉 王 皋 |
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| 作者单位： | 1. Department of Applied Physics，Central South University，Changsha 410083，P.R.China; 2. International Centre for Materials Physics，Chinese Academy of Sciences，Shenyang 110015，P.R.China |
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| 基金项目： | Project (98JY2 0 48)supportedbytheNaturalScienceFoundationofHunanProvince |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＩｔｉｓｗｅｌｌｋｎｏｗｎｔｈａｔｔｈｅｓｏｌｉｄｌｕｂｒｉｃａｔｉｏｎｍａｔｅ ｒｉａｌｓｃｏｍｍｏｎｌｙｕｓｅｄａｔｈｉｇｈｔｅｍｐｅｒａｔｕｒｅｓ ,ｌｏｗｔｅｍ ｐｅｒａｔｕｒｅｓｏｒ(ａｎｄ)ｉｎｖａｃｕｕｍａｒｅ ｇｒａｐｈｉｔｅ ,ｍｅｔａｌｌｉｃｓｕｌｐｈｉｄｅＭＸ2 (ｗｈｅｒｅＭｓｔａｎｄｓｆｏｒＷａｎｄＭｏ ,ＸｆｏｒＳ ,ＳｅａｎｄＴｅ) ,Ｃ60 ａｎｄｅｔｃ .Ｔｈｅｇｏｏｄｌｕｂｒｉｃａｔｉｏｎｐｒｏｐｅｒｔｙｏｆｔｈｅｓｅｃｏｎｖｅｎｔｉｏｎａｌｓｏｌｉｄｌｕ…
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Microstructure and preparation of nano S-W-S new solid lubrication system |
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| WEI Qin,LUO Wen-dong,SUN Ke-hui,WANG Gao.Microstructure and preparation of nano S-W-S new solid lubrication system[J].Transactions of Nonferrous Metals Society of China,2000,10(6). |
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| Authors: | WEI Qin LUO Wen-dong SUN Ke-hui WANG Gao |
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| Abstract: | The method for preparing a new solid lubrication system of nano S W S was presented. The microstructure of the S W S nano cluster was investigated using TEM and XRD. The system is a mixture clusters of both monocrystal and polycrystal of layered hexagonal structure with one tungsten atom linking with two sulphur atoms, and the week Van der Waals' force bonding together the different layers. The changes of electronic structure were studied with XPS. The hybridization of different electronic shell orbitals of the sulphur atom in the nano cluster is regarded as the quantum size effect. The clusters are found to be of a closed spherical structure without any dangling bond. |
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| Keywords: | solid lubrication system nanometer cluster quantum size effect |
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