Preparation and Thermal Conductivity of Y2Ce2O7 Ceramic Material

Hong Song Zhang; Su Ran Liao; Wei Yuan; Shao Kang Guan

doi:10.4028/www.scientific.net/AMR.266.59

Paper Titles

Temperature Dependent Photoluminescence of Fe-Doped TiO₂ Nanowires Prepared by Hydrothermal Method
p.42

Optimized Synthesis of Water-Soluble and Small-Size CdSe Quantum Dots
p.46

Fabrication of Needle Nano-ZnO in the Pores of Expanded Graphite
p.51

Synthesis and Performance of Porous TiO₂
p.55

Preparation and Thermal Conductivity of Y₂Ce₂O₇ Ceramic Material
p.59

Fabrication and Characterization of Ceramic Floor Tiles from Coal Gangue
p.63

Study on Heat Treatment of Aluminum Nitride (Y₂O₃) Ceramics Sintered at High Pressure
p.68

Experimental Study on Lump Iron Ores as Sintering Hearth Layer
p.72

Grain Size Control and Ethanol Sensing Properties of Calcined SnO₂ Nanoparticles
p.76

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 266Preparation and Thermal Conductivity of Y2Ce2O7...

Preparation and Thermal Conductivity of Y₂Ce₂O₇ Ceramic Material

Abstract:

Y2Ce2O7 ceramic material was prepared by solid reaction at 1600°C for 10h. The phase composition, microstructure and thermal conductivity of this material were investigated. XRD results reveals that single phase Y2Ce2O7 with fluorite structure was synthesized. Microstructure of Y2Ce2O7 was dense and no other unreacted oxides or interphase existed in the interfaces between grains. Because of phonon scattering by oxygen vacancies and difference in atomic mass between substitutional atoms and host atoms, thermal conductivty of Y2Ce2O7 is lower than that of 8YSZ, which implies that this ceramic can be used as novel candidate materials for thermal barrier coatings in the future.