1 November 1990 Analysis and prevention of Kovar phase transformation failures in cryogenically operated sensors and instruments
Author Affiliations +
Abstract
Metallurgical and physical property changes in Kovar, an Fe-Ni-Co alloy, associated with the phase transformation phenomenon and factors which affect the stability of austenitic structures are discussed. Martensitic phase transformation is considered to be a critical concern to designers of cryogenic instruments for avoiding transformation-induced failures. Problems under consideration include properties of iron-nickel alloys and Kovar alloy, austenite stability in Kovar alloy, and phase transformation testing.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Brian Toft, Thomas G. Evans, "Analysis and prevention of Kovar phase transformation failures in cryogenically operated sensors and instruments", Proc. SPIE 1340, Cryogenic Optical Systems and Instruments IV, (1 November 1990); doi: 10.1117/12.23070; https://doi.org/10.1117/12.23070
PROCEEDINGS
7 PAGES


SHARE
KEYWORDS
Glasses

Cryogenics

Nickel

Sensors

Optical cryogenics

Surface finishing

Crystals

RELATED CONTENT

Optical Fabrication Technology, The Present and Future
Proceedings of SPIE (December 09 1983)
Getting Optics Through The Shop
Proceedings of SPIE (March 23 1981)
What Is Different About Metals?
Proceedings of SPIE (January 15 1976)

Back to Top