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Author Ganapathi, S.K. ♦ Spada, F.E. ♦ Talke, F.E.
Sponsorship IEEE Magnetics Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1965
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Residual stresses ♦ Scanning electron microscopy ♦ Transmission electron microscopy ♦ Grain boundaries ♦ Compressive stress ♦ X-ray scattering ♦ Testing ♦ X-ray diffraction ♦ Protection ♦ Sputtering
Abstract Scanning and transmission electron microscopy studies were conducted to investigate the wear behavior of unlubricated polycrystalline zirconia-overcoated disks. The results indicate that the overcoat is susceptible to cracking in the direction of sliding. Cracking in the zirconia-overcoated disks appears to initiate at triple points and propagates along the grain boundaries. The tendency to crack formation appears to be related to the presence of a residual stress in the sputtered overcoat and also to nanometer-scale porosity at the grain boundaries. Preliminary X-ray diffraction investigations suggest that a compressive residual stress of about 3.5 GPa is present in the overcoat.<<ETX>>
Description Author affiliation :: Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA
ISSN 00189464
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1992-09-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 28
Issue Number 5
Size (in Bytes) 500.88 kB
Page Count 3
Starting Page 2533
Ending Page 2535

Source: IEEE Xplore Digital Library