Effect of subsurface damage on indentation behavior of ground ULE™ glass

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16 Scopus citations


The subsurface damage in ground optical glasses was characterized using the ball-dimple technique. At the same lapping conditions, larger abrasive size introduced deeper subsurface damage, and the surface damage was proportional to the surface roughness. Surface degradation in the ground glasses due to the formation and propagation of the subsurface damage was evaluated using microindentation method. A two parameters empirical equation was used to describe the indentation behavior of the ground glasses. It was found that the nominal near-surface elastic constant decreases with the indentation load, suggesting the propagation and formation of surface cracks during the indentation.

Original languageEnglish
Pages (from-to)3861-3865
Number of pages5
JournalJournal of Non-Crystalline Solids
Issue number52-54
StatePublished - Dec 15 2005

Bibliographical note

Funding Information:
This research was supported partially by NFS through the grant DMR-0211706 monitored by Dr Guebre Tessema and Dr Bruce A. Macdonald. Peixing Fei did the indentation experiments.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry


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