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Proceedings Paper

Effects of nanodiamond abrasive friability in experimental MR fluids with phosphate laser glass LHG-8 and other optical glasses
Author(s): Jessica E. DeGroote; Anne E. Marino; John P. Wilson; Kathleen E. Spencer; Stephen D. Jacobs
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Paper Abstract

Research is currently being conducted to better understand the role that nanodiamond abrasives play in the removal process of Magnetorheological Finishing (MRF). The following presents removal rate data for a set of six optical glasses that were spotted (not polished out) with four different MR fluids, as well as texturing/smoothing data for phosphate laser glass LHG-8. Three of the fluids contained nanodiamonds with varying friability levels and the fourth fluid was an abrasive-free fluid that was used as a baseline for comparison. The medium friability nanodiamonds were found to be the most efficient in removing material on LHG-8, and the three silicate glasses, FS, BK-7 and FD-60. The high friability nanodiamond fluid was the most efficient for removal with the titanium and fluro- phosphate glasses EFDS-1 and FCD-1. With this nanodiamond the removal rates of all six glasses followed a mechanical figure of merit. The presence of nanodiamonds in the MR fluid greatly affected the surface texture of LHG-8. The abrasive-free MR fluid caused severe pitting that was either reduced or eliminated once the nanodiamonds were added to the fluid.

Paper Details

Date Published: 18 August 2005
PDF: 12 pages
Proc. SPIE 5869, Optical Manufacturing and Testing VI, 58690K (18 August 2005); doi: 10.1117/12.613959
Show Author Affiliations
Jessica E. DeGroote, Univ. of Rochester (United States)
Anne E. Marino, Univ. of Rochester (United States)
John P. Wilson, Univ. of Rochester (United States)
Kathleen E. Spencer, Univ. of Rochester (United States)
Stephen D. Jacobs, Univ. of Rochester (United States)


Published in SPIE Proceedings Vol. 5869:
Optical Manufacturing and Testing VI
H. Philip Stahl, Editor(s)

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