Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 408, Issue -, Pages 1153-1156Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2004.12.190
Keywords
rare earth-doped ceria; lattice parameter; thermal expansion; Debye temperature
Ask authors/readers for more resources
Thermal expansions of un-doped ceria and rare earth-doped ceria (Ce1-xMxO2-x/3, M=La, Sm, Dy, Yb) were measured in the temperature range from 100 to 800 K by TMA. Debye temperature, of these compounds were measured at room temperature by all ultrasonic Pulse method. The thermal expansion coefficients of rare earth-doped CeO2 increased with increasing ionic radius of doped ions and its M content expect Dy ion. The Debye temperature of rare earth-doped ceria estimated from the longitudinal and transverse sonic wave velocities decreased with increasing M content, probably due to generation of oxygen vacancy by doping the rare earth elements. The relation between thermal expansion coefficient and Debye temperature was discussed. (c) 2005 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available