Translator Disclaimer
Paper
26 July 1999 Increasing the strength of sapphire by heat treatments
Author Affiliations +
Abstract
Heat treatments of finished sapphire compression and biaxial flexure specimens increased sapphire's high temperature strength. Heat treatments of sapphire specimens at 1450 degrees C for 48 hours in an air atmosphere enriched with oxygen increased the compression strength by 60 percent and biaxial flexure strength at 600 degrees C by 45 percent over untreated samples.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frederick Schmid, Keil A. Schmid, Chandra P. Khattak, Peter Duggan, and Daniel C. Harris "Increasing the strength of sapphire by heat treatments", Proc. SPIE 3705, Window and Dome Technologies and Materials VI, (26 July 1999); https://doi.org/10.1117/12.354639
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Controlling stress in sapphire optics
Proceedings of SPIE (November 01 1997)
80 mm EFG sapphire dome blanks yield high quality low...
Proceedings of SPIE (December 14 1992)
Glass to silicon anodic bonding
Proceedings of SPIE (April 16 1998)
High-temperature strength of sapphire
Proceedings of SPIE (October 25 2000)

Back to Top