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  • International Optical Design Conference and Optical Fabrication and Testing
  • OSA Technical Digest (CD) (Optica Publishing Group, 2010),
  • paper OMC3
  • https://doi.org/10.1364/OFT.2010.OMC3

Thermal Shock During Cooling/Rinsing of Optical Glass

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Abstract

We measured the thermal shock fracture and strength degradation of the commercially available BK-7 borosilicate crown optical glass as a function of surface finish prior to thermal shock testing and amount of temperature drop in de-ionized water and a more viscous silicone oil. There is little strength degradation for temperature drops smaller than critical. Post-quenching strength depends on surface finish and the cooling/rinsing medium.

© 2010 OSA, SPIE

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