Download Advanced Tribology: Proceedings of CIST2008 & ITS-IFToMM2008 by Siwei Zhang (auth.), Prof. Jianbin Luo, Prof. Yonggang Meng, PDF

By Siwei Zhang (auth.), Prof. Jianbin Luo, Prof. Yonggang Meng, Prof. Tianmin Shao, Dr. Qian Zhao (eds.)

"Advanced Tribology" is the court cases of the fifth China foreign Symposium on Tribology (held each 4 years) and the first foreign Tribology Symposium of IFToMM, held in Beijing 24th-27th September 2008. It comprises seven elements: lubrication; friction and put on; micro/nano-tribology; tribology of coatings, floor and interface; biotribology; tribo-chemistry; tribology. The ebook displays the hot development within the fields comparable to lubrication, friction and put on, coatings, and precision manufacture and so on. within the world.

The publication is meant for researchers, engineers and graduate scholars within the box of tribology, lubrication, mechanical creation and commercial design.

The editors Jianbin Luo, Yonggang Meng, Tianmin Shao and Qian Zhao are the entire professors on the country Key Lab of Tribology, Tsinghua collage, Beijing.

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Self-lubrication of porous composites infiltrated with solid lubricants based on two preconditions [12]. One is that the lubricants in holes can reach the sliding surface during friction. The other is that the lubricants have a good lubricating effect. It is usually considered for porous self lubrication materials that solid lubricant is forced to the surface by capillarity or the difference of thermal expansion coefficient between the solid lubricant phase and the matrix base. At lower temperatures, such as 25 ƕC, obvious thermal expansion or melt of Pb-Sn-Ag based solid lubricants hardly happens.

Hu, Q. Chang, control of local friction of metal/ceramic couples in aqueous solutions with an electrochemical method, Wear 260 (2006) 305-309. 2. H. L. Wong, Y. Meng, S. Wen, An indirect electric field effect on the friction of boundary-lubricated couples, Lubr. Sci. 15 (3) (2003) 275-292. 3. Q. Chang, Y. Meng, S. Wen, Influence of interfacial potential on the tribological behavior of brass/silicon dioxide friction couple, Appl. Surf. Sci. 202 (2002) 120-125. TYPICAL RESULTS Results of a typical metal/ceramic couples lubricated with aqueous solutions of sodium lauryl sulfate, and controlled by applying a voltage are shown in Fig.

The value of O is also taken as a function of the oscillation frequency as shown in the same Figure. 5, n=0 is assumed to get the best fit to the measured values. 8 result with reasonable agreement with the measured values. Central film thickness/nm 10000 ELASTOHYDRODYNAMICS The Ertel-Grubin Theory The possibility of predicting the thick EHL film formation at low speeds is then examined by the two-dimensional Er tel-Grubin theory. 10 EHL film thickness calculated with K* where E is Young’ modulus of the solid, b the half width of a two-dimensional Hertzian contact, pmax the maximum Hertzian pressure, and x the coordinate along the contact surface.

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