Suitability of igneous rock for precision tooling

M. Valente, J. Burge, R. DiCenso, A. Abusafieh, D. Federico

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Surface plates and blocking tools are commonly made of granite because of its good stability. But how stable is the granite, and which type of material is optimal? We have explored several materials manufacturing processes for a 4-m aspheric reference surface that would serve as a tool for laying up composite optics. In this paper, we discuss the materials selection, stability to thermal and moisture effects, and parameters for processing the surface to give sub-micron accuracy and stability.

Original languageEnglish (US)
Pages (from-to)174-180
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2001
Externally publishedYes


  • Granite
  • Igneous rock
  • Processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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