Magnetorheological finishing of chemical-vapor deposited zinc sulfide via chemically and mechanically modified fluids

Salzman, Sivan; Romanofsky, Henry J.; Giannechini, Lucca J.; Jacobs, Stephen D.; Lambropoulos, John C.

doi:10.1364/AO.55.001481

Magnetorheological finishing of chemical-vapor deposited zinc sulfide via chemically and mechanically modified fluids

Journal Article · Thu Feb 18 23:00:00 EST 2016 · Applied Optics

DOI:https://doi.org/10.1364/AO.55.001481· OSTI ID:1242977

Salzman, Sivan ^[1]; Romanofsky, Henry J. ^[2]; Giannechini, Lucca J. ^[2]; Jacobs, Stephen D. ^[2]; Lambropoulos, John C. ^[2]

Univ. of Rochester, Rochester, NY (United States); Laboratory for Laser Energetics, University of Rochester, Rochester, NY
Univ. of Rochester, Rochester, NY (United States)

In this study, we describe the anisotropy in the material removal rate (MRR) of the polycrystalline, chemical-vapor deposited zinc sulfide (ZnS).We define the polycrystalline anisotropy via microhardness and chemical erosion tests for four crystallographic orientations of ZnS: (100), (110), (111), and (311). Anisotropy in the MRR was studied under magnetorheological finishing (MRF) conditions. Three chemically and mechanically modified magnetorheological (MR) fluids at pH values of 4, 5, and 6 were used to test the MRR variations among the four single-crystal planes. When polishing the single-crystal planes and the polycrystalline with pH 5 and pH 6MR fluids, variations were found in the MRR among the four single-crystal planes and surface artifacts were observed on the polycrystalline material. When polishing the single-crystal planes and the polycrystalline with the modified MR fluid at pH 4, however, minimal variation was observed in the MRR among the four orientations and a reduction in surface artifacts was achieved on the polycrystalline material.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Rochester, Rochester, NY (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: NA0001944

OSTI ID:: 1242977

Alternate ID(s):: OSTI ID: 1238407

Journal Information:: Applied Optics, Journal Name: Applied Optics Journal Issue: 6 Vol. 55; ISSN 0003-6935; ISSN APOPAI

Publisher:: Optical Society of America (OSA)Copyright Statement

Country of Publication:: United States

Language:: English

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Experimental study on chemical mechanical polishing of chalcogenide glasses Xue, Dongbai; Wang, Peng; Jiao, Lingyan Applied Optics, Vol. 58, Issue 8 https://doi.org/10.1364/ao.58.001950	journal	January 2019

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