The Decomposition Mechanisms and Thermal Stability of ZDOL Lubricant on Hydrogenated Carbon Overcoats
Author:
Chen Chao-Yuan1, Wei Jianjun1, Fong Walton1, Bogy David B.1, Bhatia C. Singh2
Affiliation:
1. Computer Mechanics Laboratory, Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720 2. SSD/IBM, 5600 Cottle Road, San Jose, CA 95193
Abstract
Tribo-chemical studies of the head/disk interface (HDI) were conducted using hydrogenated CHx carbon disk samples coated with perfluoropolyether ZDOL lubricant. The studies involved drag tests with uncoated and carbon-coated Al2O3-TiC sliders and thermal desorption experiments in an ultra-high vacuum (UHV) tribochamber. The friction and catalytic decomposition mechanisms as well as the thermal behavior of ZDOL are described, and data demonstrating the chemical reactions of the lubricant and carbon overcoat are also presented. During the sliding at the carbon-coated slider/ZDOL lubricated CHx disk interface, frictional heating is the primary decomposition mechanism of ZDOL. [S0742-4787(00)01902-0]
Publisher
ASME International
Subject
Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials
Reference25 articles.
1. Pacansky, J., and Waltmann, R. J., 1993, “Electron Beam Irradiation of Polyperfluoroethers: Experimental Analysis of Main-chain Degradation,” Chem. Mater., 5, pp. 486–494. 2. Vurens, G., Zehringer, R., and Saperstein, D., 1992, “The Decomposition Mechanisms of Perfluoropolyether Lubricants during Wear,” Surface Science Investigations in Tribology, Chung, Y. W., Homola, A. M., and Street, B., eds, American Chemical Society, Washington, DC, pp. 169–180. 3. Zehe, M. J., and Faut, O. D., 1990, “Acid Attack of Perfluorinated Alkyl Ether Lubricant Molecules by Metal Oxide Surfaces,” Tribol. Trans., 33, pp. 634–640. 4. Kasai, P. H.
, 1992, “Degradation of Perfluoropolythers Catalyzed by Lewis Acids,” Adv. Info. Storage Syst., 4, pp. 291–314. 5. Wei, J., Fong, W., Bogy, D. B., and Bhatia, C. S., 1998, “The Decomposition Mechanisms of a Perfluoropolyether at the Head/Disk Interface of Hard Disk Drives,” Tribol. Lett., 5, pp. 203–209.
Cited by
13 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|