Nanotribological Characterization and Lubricant Degradation Studies of Metal-Film Magnetic Tapes Using Novel Lubricants

Autor:	Bharat Bhushan, Chris Merton, Nang T. Tran, Todd L. Ethen, Zhenhua Tao, Richard E. Jewett, Michał Cichomski
Rok vydání:	2007
Předmět:	Materials science Mechanical Engineering Ultra-high vacuum Magnetic tape Surfaces and Interfaces Adhesion Tribology Durability Surfaces Coatings and Films law.invention Mechanics of Materials law Forensic engineering Lubrication Adhesive Composite material Lubricant
Zdroj:	Journal of Tribology. 129:621-627
ISSN:	1528-8897 0742-4787
DOI:	10.1115/1.2736454
Popis:	In order to improve the durability of metal-film magnetic tapes, novel lubricants, A20H, X-1P, and X, a modified phosphazene, were deposited on the tapes. The adhesion, friction, and wear of the unlubricated/lubricated tapes were investigated using an atomic force microscope (AFM). The degradation of the lubricants was studied using a mass spectrometer in high vacuum. The durability of various unlubricated/lubricated tapes was compared in ambient and in humid air. The AFM test results show that the A20H lubricated tape exhibited lower adhesion and friction than X-1P and X lubricated tapes. The lubricants were believed to be mainly degraded by tribochemical reaction and mechanical shear in high vacuum. In high humidity air, the various lubricated tapes exhibit higher friction than in ambient air. By comparing the tribological performances of the various lubricated tapes to metal particle (MP) tape, it was found that the lubricated metal-film tapes exhibit lower adhesion, friction, and wear than the MP tape.
Databáze:	OpenAIRE
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