Effects of nanodiamond abrasive friability in experimental MR fluids with phosphate laser glass LHG-8 and other optical glasses

Jessica E. DeGroote; Anne E. Marino; John P. Wilson; Kathleen E. Spencer; Stephen D. Jacobs

doi:10.1117/12.613959

18 August 2005 Effects of nanodiamond abrasive friability in experimental MR fluids with phosphate laser glass LHG-8 and other optical glasses

Jessica E. DeGroote, Anne E. Marino, John P. Wilson, Kathleen E. Spencer, Stephen D. Jacobs

Author Affiliations +

Proceedings Volume 5869, Optical Manufacturing and Testing VI; 58690K (2005) https://doi.org/10.1117/12.613959
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

Jessica E. DeGroote, Anne E. Marino, John P. Wilson, Kathleen E. Spencer, and Stephen D. Jacobs "Effects of nanodiamond abrasive friability in experimental MR fluids with phosphate laser glass LHG-8 and other optical glasses", Proc. SPIE 5869, Optical Manufacturing and Testing VI, 58690K (18 August 2005); https://doi.org/10.1117/12.613959

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