The Role of Nanodiamonds in the Polishing Zone During Magnetorheological Finishing (MRF)

Conference · Mon Jan 07 00:00:00 EST 2008 · in Optical Manufacturing and Testing VII

OSTI ID:921623

DeGroote, J E; Marino, A E; WIlson, J P; Bishop, A L; Jacobs, S D

In this work we discuss the role that nanodiamond abrasives play in magnetorheological finishing. We hypothesize that, as the nanodiamond MR fluid is introduced to the magnetic field, the micron sized spherical carbonyl iron (CI) particles are pulled down towards the rotating wheel, leaving a thin layer of nanodiamonds at the surface of the stiffened MR fluid ribbon. Our experimental results shown here support this hypothesis. We also show that surface roughness values inside MRF spots show a strong correlation with the near surface mechanical properties of the glass substrates and with drag force.

• Research Organization: Univ. of Rochester, NY (United States). Lab. for Laser Energetics
• Sponsoring Organization: USDOE
• DOE Contract Number: FC52-92SF19460
• OSTI ID: 921623
• Report Number(s): DOE/SF/19460-793; 2007-10; 1765; TRN: US200802%%962
• Journal Information: in Optical Manufacturing and Testing VII, Vol. 6671; Conference: SPIE Optics and Photonics 2007, San Diego, CA, 26-30 August 2007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DIAMONDS
NANOSTRUCTURES
ABRASIVES
SURFACE FINISHING
IRON COMPOUNDS
CARBONYLS
GLASS
MAGNETIC FIELDS
MECHANICAL PROPERTIES
OPTICS
POLISHING
ROUGHNESS
SUBSTRATES
magnetorheological finishing
surface texture
nanodiamonds
friability
optical glass
power spectral density