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Application of nanometer diamond grinding
The advantages of oil are: reducing friction momentum 2O a 4O; friction surface to reduce wear and tear of a 3O 4O; friction can quickly adjust. The country with an average diameter of 3-6nm of detonation for the production of nano-diamond additives, to obtain good results. Is]. I use a smaller particle size (particle size less than 20nm) detonation synthesis of diamond and nano-manufacturing with the crushing method (particle size 1O-lOOnm) nano-diamond additives for lubricants were compared with experiments. It was found that the former antiwear performance, the latter fast running, high polishing efficiency (see Figure 5, Figure 6), made with crushed Nanocrystalline diamond efficient running of oil will have a very good prospect. Antiwear effect of rapid population polishing grinding A diamond particle size in Figure 5 Relationship between friction and wear of diamond grain size in Figure 6 and rapid adjustments, and polishing paper synthetic diamond products, packaging materials by the reaction time and other various factors, the crystal will contain some impurities, such as Si, N, O, Fe, Ni, Mn,magasin moncler, Co, Cr and so on. And mostly in the form of inclusions in the diamond crystal. Nano-diamond grinding in the manufacturing process,moncler jackets, inclusion and more destruction, the diamond crystal greatly reduced the impurity content, purity much higher insulation is also greatly improved. Diamond band gap 5.5ev, at room temperature resistance of 1O ?? Qcm, with very high breakdown voltage than silicon (Si) and gallium arsenide (GaAs) high breakdown voltage of 2 orders of magnitude. Thermal conductivity of diamond at room temperature is a good conductor of copper (Cu) 5 times, heat flux up to 1O5W/cm. Increasing the height of the thermal conductivity of insulating diamond the ideal material for a heat sink. Especially in very large scale integration (VLSI) and special large scale integration (ULSI), and three-dimensional integrated circuits play a special role, thus greatly improving the performance of integrated circuits. Large integrated circuits has reached the current 1O a component, heat issues can not be neglected, if not addressed will affect performance and development of integrated circuits, or even result in integrated circuit does not work, if the diamond heat sink with a large number of components can be put rapid transmission of the heat out, so that the information system performance greatly improved. Nanocrystalline diamond has a high crushing insulation (high breakdown voltage), high thermal conductivity, high heat flux of the quality of IT products is the ideal packaging material. 3.4 As a super-fine polishing, abrasive materials can be made smash the nanometer diamond polishing, grinding fluid, grinding paste or grinding blocks,ugg boots günstig, can be super-fine surface finish, using 100nm as the crushing Nanocrystalline diamond polishing, polishing heads, roughness up to lnm. Nano diamond polishing has been used can be processed out of the sub-nanometer surface roughness of 0.24nm. 3.5 Application of nano-diamond is the key to the dispersion of nano-particle surface atoms to a large number of dangling bonds greatly increased chemical activity, a very large surface area, it has a huge surface energy. Reduce the surface area, surface energy and reduce the occurrence of agglomeration of nanoparticles is a spontaneous process. So nano-particle agglomeration is inevitable. In the nano-particles dispersed, but also to take timely measures to prevent the recurrence of nano-particles aggregation. Surfactant is added to increase the distance between the particles and reduce the van der Waals interactions, to stabilize the dispersion system,moncler homme, so choose a suitable dispersant has become a hotspot. For the nano-diamond, the synthesis of a dispersing agent performance, the design of efficient distributed methods to improve the stability of particle dispersion Hou Nami, uniformity, as the application of nano-diamond key. 4 Conclusion nanodiamond broaden the traditional sense of the diamond fields of application. However, the application of nano-diamond, after all, a late start, over time, will bear more fruit. In particular the small size effect of nano-diamond, quantum effects and macroscopic quantum tunneling effect of in-depth study of the application of nano-diamond prospect of much wider. References [1] Hao Zhao and India and so on. Jilin University Press, 1996 [2] Xu Bin soil. Chemical Industry Press, 2004 [3] Chen Yafang. National Defence Industry Press, 2003 [4] Wang Guangzu. Superhard materials in China,moncler prix, 2003 [5] Shu-up. Fourth Zhengzhou International Superhard materials and products Symposium, 2003 [6] Lu Bingxiu, Ding Zhong repair. China"s super-hard materials, 200,329
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风险权数有何确定标准 他的概念是什么多谢金融高手 风险权数 内容 0% (1)现金。 (2)以本国货币定值，并以此通货对中央政府或中央银行融通资金的
LuckySXyd -
http://www.cbrc.gov.cn/chinese/home/docView/947.html看银监会这里公布的利率风险管理与监管原则，这里有解释