A Promising Sm1.9Ca0.1Zr2O6.95 Ceramic for Thermal Barrier Coatings

Xu, Qiang; Pan, Wei; Wan, Chun Lei; Qi, Long Hao; Miao, He Zhuo

doi:10.4028/www.scientific.net/KEM.336-338.1762

Paper Titles

Cyclic Oxidation Behavior of Thermal Barrier Coatings in Environments Containing Water Vapor
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Design and Properties of Fire-Proof Coating for Tunnels
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Influence of Infiltration Additives on the Phase, Microstructure and Oxidation Resistance of SiC Coating for Graphite Materials
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Thermal Cycling Behavior of Lanthanum-Cerium Oxide Thermal Barrier Coatings Prepared by Air Plasma Spraying
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A Promising Sm_1.9Ca_0.1Zr₂O_6.95 Ceramic for Thermal Barrier Coatings
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Low Thermal Conductivity Ceramics for Thermal Barrier Coatings
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Fabrication and Isothermal Oxidation Behavior of the Co-Deposited EB-PVD (NiAl + YSZ) Coating
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A Comparative Study of Two-Layer NiAl Bond Coat TBC and its Failure Mechanism
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Thermophysical Properties of Samarium-Cerium Oxide for Thermal Barrier Coatings Application
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Home Key Engineering Materials High-Performance Ceramics IVA Promising Sm1.9Ca0.1Zr2O6.95 Ceramic for Thermal...

A Promising Sm_1.9Ca_0.1Zr₂O_6.95 Ceramic for Thermal Barrier Coatings

Abstract:

Sm1.9Ca0.1Zr2O6.95 ceramic was sintered at 1600°C for 10 h in air by solid-state reaction method. The phase structure and thermal expansion coefficient were measured by XRD and a high-temperature dilatometry, respectively. The results show that the crystal structure of Sm1.9Ca0.1Zr2O6.95 ceramic is still pyrochlore. The doping with calcium cation leads to a shift of the X-ray spectrum of Sm1.9Ca0.1Zr2O6.95 ceramic to lower 2θ values. The experiments also show that the thermal expansion coefficients of Sm1.9Ca0.1Zr2O6.95 ceramic are higher than those of Sm2Zr2O7 ceramic. These results are related to the vacancy induced by doped calcium cation in the samarium lattice.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Main Theme:

High-Performance Ceramics IV

Edited by:

Wei Pan and Jianghong Gong

Pages:

1762-1763

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.1762

Citation:

Q. Xu et al., "A Promising Sm_1.9Ca_0.1Zr₂O_6.95 Ceramic for Thermal Barrier Coatings", Key Engineering Materials, Vols. 336-338, pp. 1762-1763, 2007

Online since:

April 2007

Authors:

Qiang Xu, Wei Pan, Chun Lei Wan, Long Hao Qi, He Zhuo Miao

Keywords:

Calcium Cation, Sm₂Zr₂O₇ Ceramic, Thermal Barrier Coating (TBC), Thermal Expansion

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References

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