Effects of Doping on Thermal Conductivity of Pyrochlore Oxides for Advanced Thermal Barrier Coatings

@inproceedings{Bansal2007EffectsOD,
  title={Effects of Doping on Thermal Conductivity of Pyrochlore Oxides for Advanced Thermal Barrier Coatings},
  author={Narottam P. Bansal and Dongming Zhu},
  year={2007}
}
Abstract Pyrochlore oxides of general composition, A 2 B 2 O 7 , where A is a 3+ cation (La to Lu) and B is a 4+ cation (Zr, Hf, Ti, etc) have high melting point, relatively high coefficient of thermal expansion, and low thermal conductivity which make them suitable for applications as high-temperature thermal barrier coatings. The effect of doping at the A site on the thermal conductivity of a pyrochlore oxide La 2 Zr 2 O 7, has been investigated. Oxide powders of various compositions La 2 Zr… CONTINUE READING

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