Improving sapphire window strength

Michael R. Borden; Joel Askinazi

doi:10.1117/12.277049

27 June 1997 Improving sapphire window strength

Michael R. Borden, Joel Askinazi

Proceedings Volume 3060, Window and Dome Technologies and Materials V; (1997) https://doi.org/10.1117/12.277049
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

Subjecting a-plane (90 degree) polished sapphire discs to a high temperature anneal resulted in a 31% improvement in the average strength, and a decrease in the strength variability. Implications on the design of sapphire pressure windows (thickness, weight, transmission) are reported.

Citation Download Citation

Michael R. Borden and Joel Askinazi "Improving sapphire window strength", Proc. SPIE 3060, Window and Dome Technologies and Materials V, (27 June 1997); https://doi.org/10.1117/12.277049

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