Current Status Of Sapphire Technology For Window And Dome Applications

F. Schmid; C. P. Khattak

doi:10.1117/12.960760

11 September 1989 Current Status Of Sapphire Technology For Window And Dome Applications

F. Schmid, C. P. Khattak

Proceedings Volume 1112, Window and Dome Technologies and Materials; (1989) https://doi.org/10.1117/12.960760
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

The properties of sapphire make it an ideal choice for future high speed missile applications compared to other existing or emerging materials. High fabrication cost and low material utilization from a sapphire boule cause high costs for sapphire domes. Significant improvements have been made by growing sapphire boules with (0001) orientation and contour slicing. A more desirable approach is to produce near net-shaped sapphire blanks directly from the melt. The feasibility of producing crack-free near net-shaped blanks with controlled inside and outside curvature from the melt in (0001) orientation has been demonstrated using the Heat Exchanger Method (HEM).

Citation Download Citation

F. Schmid and C. P. Khattak "Current Status Of Sapphire Technology For Window And Dome Applications", Proc. SPIE 1112, Window and Dome Technologies and Materials, (11 September 1989); https://doi.org/10.1117/12.960760

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