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Title: Investigation of slider surfaces after wear using photoemission electron microscopy. [C:H]

Abstract

The tribo-chemical interactions between the slider and the hard disk surface strongly influence the performance properties of a disk drive. To study these interactions, uncoated and carbon coated sliders were subjected to various wear tests using different disks. After the wear, the test slider surfaces were studied by photoemission electron microscopy (PEEM) using tunable x rays produced by a synchrotron. Using PEEM, one can identify the elemental and chemical state of the surfaces with a high spatial resolution. It was found that wear reduces the thickness of the carbon coating in some local areas of the slider surface. In particular, the coating was removed on elevated areas and in scratches. Scratches were found on the rails of the carbon coated and uncoated sliders after wear that showed the accumulation of a degraded (oxidized) lubricant which was transferred to the slider from the disk. It was also possible to analyze the chemical composition of the debris found on the slider surface. In the present case, the debris had the same chemical composition as the carbon coating of the slider. [copyright] [ital 1999 American Vacuum Society.]

Authors:
;  [1]; ;  [2];  [3];  [4]
  1. (Advanced Light Source, Ernest Orlando Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720 (United States))
  2. (Computer Mechanics Laboratory, Mechanical Engineering Department, University of California, Berkeley, California 94720 (United States))
  3. (SSD/IBM, San Jose, California 95193 (United States))
  4. (IBM Research Division, Almaden Research Center, San Jose, California 95120 (United States))
Publication Date:
OSTI Identifier:
6439686
Alternate Identifier(s):
OSTI ID: 6439686
Resource Type:
Journal Article
Journal Name:
Journal of Vacuum Science and Technology, A
Additional Journal Information:
Journal Volume: 17:5; Journal ID: ISSN 0734-2101
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CARBON; CHEMICAL COMPOSITION; COATINGS; ELECTRON MICROSCOPY; MAGNETIC DISKS; MAGNETIC STORAGE DEVICES; PHOTOEMISSION; SURFACES; SYNCHROTRON RADIATION; WEAR; X RADIATION; BREMSSTRAHLUNG; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; IONIZING RADIATIONS; MEMORY DEVICES; MICROSCOPY; NONMETALS; RADIATIONS; SECONDARY EMISSION 360603* -- Materials-- Properties; 665100 -- Nuclear Techniques in Condensed Matter Physics -- (1992-)

Citation Formats

Anders, S., Stammler, T., Fong, W., Bogy, D.B., Bhatia, C.S., and Stoehr, J. Investigation of slider surfaces after wear using photoemission electron microscopy. [C:H]. United States: N. p., 1999. Web. doi:10.1116/1.581937.
Anders, S., Stammler, T., Fong, W., Bogy, D.B., Bhatia, C.S., & Stoehr, J. Investigation of slider surfaces after wear using photoemission electron microscopy. [C:H]. United States. doi:10.1116/1.581937.
Anders, S., Stammler, T., Fong, W., Bogy, D.B., Bhatia, C.S., and Stoehr, J. Wed . "Investigation of slider surfaces after wear using photoemission electron microscopy. [C:H]". United States. doi:10.1116/1.581937.
@article{osti_6439686,
title = {Investigation of slider surfaces after wear using photoemission electron microscopy. [C:H]},
author = {Anders, S. and Stammler, T. and Fong, W. and Bogy, D.B. and Bhatia, C.S. and Stoehr, J.},
abstractNote = {The tribo-chemical interactions between the slider and the hard disk surface strongly influence the performance properties of a disk drive. To study these interactions, uncoated and carbon coated sliders were subjected to various wear tests using different disks. After the wear, the test slider surfaces were studied by photoemission electron microscopy (PEEM) using tunable x rays produced by a synchrotron. Using PEEM, one can identify the elemental and chemical state of the surfaces with a high spatial resolution. It was found that wear reduces the thickness of the carbon coating in some local areas of the slider surface. In particular, the coating was removed on elevated areas and in scratches. Scratches were found on the rails of the carbon coated and uncoated sliders after wear that showed the accumulation of a degraded (oxidized) lubricant which was transferred to the slider from the disk. It was also possible to analyze the chemical composition of the debris found on the slider surface. In the present case, the debris had the same chemical composition as the carbon coating of the slider. [copyright] [ital 1999 American Vacuum Society.]},
doi = {10.1116/1.581937},
journal = {Journal of Vacuum Science and Technology, A},
issn = {0734-2101},
number = ,
volume = 17:5,
place = {United States},
year = {1999},
month = {9}
}