@inproceedings{59a5a8fcfc9640de976f864cce9f879a,
title = "Zirconia coated carbonyl iron particle-based magnetorheological fluid for polishing",
abstract = "Aqueous magnetorheological (MR) polishing fluids used in magnetorheological finishing (MRF) have a high solids concentration consisting of magnetic carbonyl iron particles and nonmagnetic polishing abrasives. The properties of MR polishing fluids are affected over time by corrosion of CI particles. Here we report on MRF spotting experiments performed on optical glasses using a zirconia coated carbonyl iron (CI) particle-based MR fluid. The zirconia coated magnetic CI particles were prepared via sol-gel synthesis in kg quantities. The coating layer was{\~ }50-100 nm thick, faceted in surface structure, and well adhered. Coated particles showed long term stability against aqueous corrosion. {"}Free{"} nano-crystalline zirconia polishing abrasives were co-generated in the coating process, resulting in an abrasivecharged powder for MRF. A viable MR fluid was prepared simply by adding water. Spot polishing tests were performed on a variety of optical glasses over a period of 3 weeks with no signs of MR fluid degradation or corrosion. Stable material removal rates and smooth surfaces inside spots were obtained.",
keywords = "Abrasives, Carbonyl iron, Magnetorheological finishing, Magnetorheological fluids, Optical glass, Zirconia",
author = "Shafrir, {Shai N.} and Romanofsky, {Henry J.} and Michael Skarlinski and Mimi Wang and Chunlin Miao and Sivan Salzman and Taylor Chartier and Joni Mici and Lambropoulos, {John C.} and Rui Shen and Hong Yang and Jacobs, {Stephen D.}",
year = "2009",
doi = "10.1117/12.826383",
language = "English (US)",
isbn = "9780819477163",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Optical Manufacturing and Testing VIII",
note = "Optical Manufacturing and Testing VIII ; Conference date: 04-08-2009 Through 05-08-2009",
}