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The Effect of Thermal Shock on the Thermal Conductivity of a Functionally Graded Material

Published

Author(s)

Andrew J. Slifka, M Packer, A Kumakawa, Bernard J. Filla, J M. Phelps, N Shimoda

Abstract

We have measured the thermal conductivity of a ni20Cr / 8% yttria-partially-stabilized-zirconia functionally graded 1.1 mm thick coating on a substrate of 403 stainless steel. We measured thermal conductivity of the as-received coated specimen, then thermally shocked the specimen and measured thermal conductivity again. The measurements were done using an absolute, steady-state technique over a temperature range from 400 K to 1200 K. The specimen was thermally shocked by heating in a furnance to 475 K, then quenching in water at 295 K. We discuss the effect of moderate thermal shock on the thernal conductivity of the coating.
Conference Dates
October 1, 1999
Conference Title
Functionally Graded Materials

Keywords

functionally graded material, low pressure plasma spray, thermal conductivity, zirconia

Citation

Slifka, A. , Packer, M. , Kumakawa, A. , Filla, B. , Phelps, J. and Shimoda, N. (1999), The Effect of Thermal Shock on the Thermal Conductivity of a Functionally Graded Material, Functionally Graded Materials (Accessed July 13, 2024)

Issues

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Created October 1, 1999, Updated February 17, 2017