Share Email Print

Proceedings Paper

Partially Stabilized ZrO[sub]2[/sub] As A Possible Ir Dome Material
Author(s): R. W. Rice; J. R. Spann; W. J. McDonough; R. P. Ingel; D. Lewis
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

There is increasing interest in IR window materials with transmissionn limits of > 5 μm, increased mechanical toughness, and higher temperature capability. ZrO2, which transmits to 7-8 μm is a possible candidate material for such needs. While its IR cut-off is at somewhat shorter wavelengths than other candidates (e.g. Y203 with a cut-off of - 9 μm), ZrO2 offers the potential of significant toughening via a two phase, i.e. partially stabilized, structure. Such structures, and the relevant toughening mechanisms are reviewed, and the resultant mechanical properties discussed, particularly for the Zr02-Y203 system. For example, some materials in this system can give strengths of about 1.5 GPa (200,000 psi) at 22°C and nearly 0.7 GPa (100,000 psi) at 1500°C for laboratory test specimens. Preliminary optical measurements, including some outlining optical scattering effects of the second (precipitate) phase, required for mechanical toughening are presented. These suggest that useful transmission in the range of interest is achievable with these toughened ZrO2 materials.

Paper Details

Date Published: 26 December 1984
PDF: 8 pages
Proc. SPIE 0505, Advances in Optical Materials, (26 December 1984); doi: 10.1117/12.964642
Show Author Affiliations
R. W. Rice, Naval Research Laboratory (United States)
J. R. Spann, Naval Research Laboratory (United States)
W. J. McDonough, Naval Research Laboratory (United States)
R. P. Ingel, Naval Research Laboratory (United States)
D. Lewis, Naval Research Laboratory (United States)

Published in SPIE Proceedings Vol. 0505:
Advances in Optical Materials
Solomon Musikant, Editor(s)

© SPIE. Terms of Use
Back to Top