Share Email Print

Proceedings Paper

Polycrystalline alumina for aerodynamic IR domes and windows
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

CeraNova's transparent polycrystalline alumina (CeraLuminTM)a has sub-micron grain size (300-500nm) and high transmittance in the mid-wave infrared (>85% in the 3-5µm MWIR region). The fine, uniform grain size imparts high hardness, high strength, and high thermal shock resistance. Polycrystalline alumina is a viable alternative to sapphire for domes, particularly for aerodynamic shapes which are readily fabricated by powder processing. Both hemispheric and ogive domes (sub-scale and full-size) have been successfully molded and densified to transparency. Hemispheric domes have been optically finished. Current efforts include a focus on scale-up, fabrication, and metrology of aerodynamic domes. This paper presents recent analyses of microstructure, optical properties, and mechanical properties.

Paper Details

Date Published: 11 May 2009
PDF: 8 pages
Proc. SPIE 7302, Window and Dome Technologies and Materials XI, 730205 (11 May 2009); doi: 10.1117/12.818158
Show Author Affiliations
Mark V. Parish, CeraNova Corp. (United States)
Marina R. Pascucci, CeraNova Corp. (United States)

Published in SPIE Proceedings Vol. 7302:
Window and Dome Technologies and Materials XI
Randal W. Tustison, Editor(s)

© SPIE. Terms of Use
Back to Top