Lanthana-Strengthened Yttria Domes And Windows

G. C Wei; M R Pascucci; E A Trickett; C Brecher; W H Rhodes

doi:10.1117/12.948119

17 January 1989 Lanthana-Strengthened Yttria Domes And Windows

G. C Wei, M R Pascucci, E A Trickett, C Brecher, W H Rhodes

Proceedings Volume 0968, Ceramics and Inorganic Crystals for Optics, Electro-Optics, and Nonlinear Conversion; (1989) https://doi.org/10.1117/12.948119
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

Lanthana-strengthened yttria is of interest for infrared applications because of its high strength, long wavelength cutoff (8 gm), and low emissivity. Specimens were fabricated for various optical, thermal, and mechanical tests, and their properties measured. A new thermal shock test method was developed and the thermal shock behavior characterized. The toughened yttria was shown to be more resistant to thermal shock fracture than the standard material. Techniques were developed for fabrication of full size infrared domes, and specimens successfully fabricated and characterized. Various details of the material and component properties will be discussed.

Citation Download Citation

G. C Wei, M R Pascucci, E A Trickett, C Brecher, and W H Rhodes "Lanthana-Strengthened Yttria Domes And Windows", Proc. SPIE 0968, Ceramics and Inorganic Crystals for Optics, Electro-Optics, and Nonlinear Conversion, (17 January 1989); https://doi.org/10.1117/12.948119

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