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Proceedings Paper

High-temperature mechanical characterization of single-crystal sapphire using laser-based ultrasonics
Author(s): David W. Blodgett; Kevin C. Baldwin
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Paper Abstract

Of current interest in the missile community is the high- temperature mechanical behavior of single-crystal sapphire. For endo-atmospheric IR transparent windows, single crystal sapphire is the material of choice. However, sapphire has been found to undergo a significant change in the mechanical properties, leading to a potential fracture of the window at the high temperatures encountered during typical flight conditions. A critical figure of merit used in considering a material's usefulness as a dome material is its thermal shock resistance.

Paper Details

Date Published: 26 July 1999
PDF: 9 pages
Proc. SPIE 3705, Window and Dome Technologies and Materials VI, (26 July 1999); doi: 10.1117/12.354641
Show Author Affiliations
David W. Blodgett, Johns Hopkins Univ. (United States)
Kevin C. Baldwin, Johns Hopkins Univ. (United States)

Published in SPIE Proceedings Vol. 3705:
Window and Dome Technologies and Materials VI
Randal W. Tustison, Editor(s)

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