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Applied Optics

Applied Optics


  • Vol. 39, Iss. 28 — Oct. 1, 2000
  • pp: 5194–5204

Nanoindentation hardness of particles used in magnetorheological finishing (MRF)

Aric B. Shorey, Kevin M. Kwong, Kerry M. Johnson, and Stephen D. Jacobs  »View Author Affiliations

Applied Optics, Vol. 39, Issue 28, pp. 5194-5204 (2000)

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Knowledge of the hardness of abrasive particles that are used in polishing is a key to the fundamental understanding of the mechanisms of material removal. The magnetorheological-finishing process uses both magnetic and nonmagnetic abrasive particles during polishing. The nanohardnesses of the micrometer-sized magnetic carbonyl iron and nonmagnetic abrasive particles have been measured successfully by use of novel, to our knowledge, sample-preparation and nanoindentation techniques. Some of the results reported compare favorably with existing microhardness data found in the literature, whereas other results are new.

© 2000 Optical Society of America

OCIS Codes
(220.4000) Optical design and fabrication : Microstructure fabrication
(220.5450) Optical design and fabrication : Polishing
(240.5770) Optics at surfaces : Roughness

Original Manuscript: January 28, 2000
Revised Manuscript: July 6, 2000
Published: October 1, 2000

Aric B. Shorey, Kevin M. Kwong, Kerry M. Johnson, and Stephen D. Jacobs, "Nanoindentation hardness of particles used in magnetorheological finishing (MRF)," Appl. Opt. 39, 5194-5204 (2000)

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  48. LHG8 glass was provided by Hoya Corp., 3400 Edison Way, Fremont, Calif. 94538.
  49. KDP was provided by Cleveland Crystals, Inc., 19306 Redwood Rd., Cleveland, Oh. 44110. Indents were made on a fractured surface (i.e., a type II cut).
  50. BASF Corp., 3000 Continental Dr. North, Mt. Olive, N.J. 07828.
  51. ISP International, 1361 Alps Rd., Wayne, N.J. 07470.
  52. Novamet, 681 Lawlins Rd., Wyckoff, N.J. 07481.
  53. A. Friederang, BASF Corp., 3000 Continental Dr. North, Mt. Olive, N.J. 07828 (personal communication, 1998).
  54. Exolon-Esk, 1000 E. Niagara St., Tonawanda, N.Y. 14151.
  55. I Zirconia, batch 1502792, was provided courtesy of Saint Gobain/Norton Industrial Ceramics Corp., 1 New Bond St., Worcester, Mass. 01606.
  56. The 1.0-µm C alumina polishing compound was provided by Praxair Surface Technologies, 1500 Polco St., Indianapolis, Ind. 46224.
  57. Ferro Electronic Materials Division, Ferro Corp., 1789 Transelco Dr., Penn Yan, N.Y. 14527.
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  60. J. D. Verhoeven, Fundamentals of Physical Metallurgy (Wiley, New York, 1975), Chaps. 11 and 14.
  61. J. C. Li, Materials Science Program, University of Rochester, River Station, Rochester, N.Y. 14627 (personal communication, 1998).
  62. J. Knapp, Praxair Surface Technologies, 1500 Polco St., Indianapolis, Ind. 46224 (personal communication, 1999).
  63. D. Zagari, Ferro Electronic Materials Division, Ferro Corp., 1789 Transelco Dr., Penn Yan, N.Y. 14527 (personal communication, 1999).
  64. A. B. Shorey, “Mechanisms of material removal in magnetorheological finishing (MRF) of glass,” Ph.D. dissertation (University of Rochester, Rochester, N.Y., 2000), Chap. 5.

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