Qian Wang

Publication Date

1989

Document Type

Dissertation/Thesis

First Advisor

Sharma, Jagdish P. (Professor of mechanical engineering)||Gupta, Abhijit

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Mechanical Engineering

LCSH

Magnetic films; Thin films; Hard disks (Computer science)

Abstract

The adhesion strength of sputtered thin carbon film as a protective layer on magnetic media is critical for data storage reliability. Its interaction with the surface of ceramic slider results in surface film failure and acoustic emission as a consequence of fretting, friction and wear. The sliding contact between these surfaces will continuously change the interfacial properties and subsequently affect the adhesion strength. The acoustic emission from the sliding surfaces will also change depending upon the changes brought to the interacting surface film and its effect on adhesion strength at any instant. An experimental method is described with a focus oh the changing pattern of acoustic signatures with friction and film failure under reciprocating contact. A correlation is found when the carbon film loses its adherence strength resulting in film failure. The related friction patterns and wear mechanisms are discussed.

Comments

Includes bibliographical references (pages [78]-79)

Extent

xi, 79 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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