Subsurface mechanical damage correlations after grinding of various optical materials

Tayyab I. Suratwala, William A. Steele, Lana A. Wong, Gary C. Tham, Joel F. Destino, Philip E. Miller, Nathan J. Ray, Joseph A. Menapace, Eyal Feigenbaum, Nan Shen, Michael D. Feit

Research output: Contribution to journalArticle

Abstract

Loose abrasive grinding was performed on a wide range of optical workpiece materials [single crystals of Al 2 O 3 (sapphire), SiC, Y 3 Al 5 O 12 (YAG), CaF 2 , and LiB 3 O 5 (LBO); a SiO 2 -Al 2 O 3 -P 2 O 5 -Li 2 O glass-ceramic (Zerodur); and glasses of SiO 2 : TiO 2 (ULE), SiO 2 (fused silica), and P 2 O 5 -Al 2 O 3 -K 2 O-BaO (phosphate)]. Using the magneto rheological finishing (MRF) taper wedge technique (where a wedge was polished on each of the ground workpieces and the resulting samples were appropriately chemically etched), the subsurface mechanical damage (SSD) characteristics were measured. The SSD depth for most of the workpiece materials was found to scale as E1 1/2 / H 1 , where E 1 is the elastic modulus and H 1 is the hardness of the workpiece. This material scaling is the same as that for the growth of lateral cracks, suggesting that lateral cracks are a dominant source for SSD rather than radial/median cracks, as previously proposed. Utilizing the SSD depth data from both this study and others, semiempirical relationships have been formulated, which allows for estimating the SSD depth as a function of workpiece material and important grinding parameters (such as abrasive size and applied pressure).

Original languageEnglish (US)
Article number092604
JournalOptical Engineering
Volume58
Issue number9
DOIs
StatePublished - Sep 1 2019
Externally publishedYes

Fingerprint

Optical materials
optical materials
grinding
damage
Cracks
cracks
abrasives
wedges
Glass ceramics
Fused silica
Abrasives
Sapphire
Phosphates
Elastic moduli
Hardness
Single crystals
glass
Glass
tapering
yttrium-aluminum garnet

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

Cite this

Suratwala, T. I., Steele, W. A., Wong, L. A., Tham, G. C., Destino, J. F., Miller, P. E., ... Feit, M. D. (2019). Subsurface mechanical damage correlations after grinding of various optical materials. Optical Engineering, 58(9), [092604]. https://doi.org/10.1117/1.OE.58.9.092604

Subsurface mechanical damage correlations after grinding of various optical materials. / Suratwala, Tayyab I.; Steele, William A.; Wong, Lana A.; Tham, Gary C.; Destino, Joel F.; Miller, Philip E.; Ray, Nathan J.; Menapace, Joseph A.; Feigenbaum, Eyal; Shen, Nan; Feit, Michael D.

In: Optical Engineering, Vol. 58, No. 9, 092604, 01.09.2019.

Research output: Contribution to journalArticle

Suratwala, TI, Steele, WA, Wong, LA, Tham, GC, Destino, JF, Miller, PE, Ray, NJ, Menapace, JA, Feigenbaum, E, Shen, N & Feit, MD 2019, 'Subsurface mechanical damage correlations after grinding of various optical materials', Optical Engineering, vol. 58, no. 9, 092604. https://doi.org/10.1117/1.OE.58.9.092604
Suratwala, Tayyab I. ; Steele, William A. ; Wong, Lana A. ; Tham, Gary C. ; Destino, Joel F. ; Miller, Philip E. ; Ray, Nathan J. ; Menapace, Joseph A. ; Feigenbaum, Eyal ; Shen, Nan ; Feit, Michael D. / Subsurface mechanical damage correlations after grinding of various optical materials. In: Optical Engineering. 2019 ; Vol. 58, No. 9.
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