Thermophysical Properties of Samarium-Cerium Oxide for Thermal Barrier Coatings Application

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Sm0.4Ce0.6O1.8 specimen with a defective fluorite structure was synthesized and its thermophysical properties were characterized for thermal barrier coatings (TBCs) application. At high temperature, Sm0.4Ce0.6O1.8 exhibited much lower thermal conductivity than 7wt% yttria-stabilized zirconia (7YSZ)-the commonly used composition in current TBCs. Sm0.4Ce0.6O1.8 also possessed large thermal expansion coefficient, which could help reduce the thermal mismatch between the ceramic coating and bond coat.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1773-1775

DOI:

10.4028/www.scientific.net/KEM.336-338.1773

Citation:

C. L. Wan et al., "Thermophysical Properties of Samarium-Cerium Oxide for Thermal Barrier Coatings Application", Key Engineering Materials, Vols. 336-338, pp. 1773-1775, 2007

Online since:

April 2007

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Price:

$35.00

[1] F. Cernuschi, P. Bianchi, M. Scardi: J. Therm. Spray Technol. Vol. 8 (1999), p.102.

[2] X. Q. Cao, R. Vassen, D. Stoever: J. Eur. Ceram. Soc. Vol. 24 (2004), p.1.

[3] J. Thornton: Mater. Forum, Vol. 22 (1998), p.159.

[4] R. Vassen, X. Q. Cao, F. Tietz, D. Basu, D. StÖver: J. Am. Ceram. Soc. Vol. 83 (2000), pp. (2023).

[5] J. Wu, X. Z. Wei, N. P. Padture, et al.: J. Am. Ceram. Soc. Vol. 85 (2002), p.3031.

[6] H. Lehmann, D. Pitzer, G. Pracht, et al.: J. Am. Ceram. Soc. Vol. 86 (2003), p.1338.

[7] X. Cao, R. Vassen, W. Fischer, F. Tietz, W. Jungen, D. StÖver: Adv. Mater. Vol. 15 (2003), p.1438.

[8] J. D. Wang, W. Pan, Q. Xu, K. Mori, T. Torigoe: Key Eng. Mater. Vol. 280-283 (2008), p.1503.

[9] J. D. Wang, W. Pan, Q. Xu: Rare Metal Materials and Engineering, Vol. 34 (2005), p.581.

[10] C.L. Wan, W. Pan, Q, Xu: K. Mori, T. Torigoe: Key Eng. Mater. Vol. 280-283 (2005), p.1501.

[11] J. Leitner, P. Chuchvalec, D. Sedmidubský, et al.: Thermochimica Acta: Vol. 395 (2003), p.27.

[12] D.R. Clarke: Surface and Coatings Technology, Vol. 163-164 (2003), p.67. Fig. 4. Thermal conductivities of synthesized Sm0. 4Ce0. 6O1. 8 and 7YSZ Fig. 5. Thermal expansion coefficient and elongation ratio of synthesized Sm0. 4Ce0. 6O1. 8.

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