Abstract
La0.5Sr0.5Co1-xNixO3-delta (0<= x<= 0.6) ceramics were prepared using a conventional solid-state ceramic route. The thermal properties—thermal conductivity and heat capacity—of these ceramics were measured by the photopyroelectric technique. The thermal conductivity was found to increase with increasing Ni content. These materials were also found to exhibit a metallic-type variation of thermal conductivity with temperature, and no metal-insulator (M-I) transition was found to occur in any of the samples prepared by this route. However, a M-I transition was found to occur in La0.5Sr0.5CoO3-delta samples prepared by hot pressing. The difference is attributed to variations in oxygen content in the samples.
Recommended Citation
M. T. Sebastian et al., "Thermal Properties of La₀.₅Sr₀.₅Co₁₋ₓNixO₃-d Ceramics using Photopyroelectric Technique," Journal of Applied Physics, American Institute of Physics (AIP), Sep 2003.
The definitive version is available at https://doi.org/10.1063/1.1598628
Department(s)
Mechanical and Aerospace Engineering
Sponsor(s)
University Grants Commission, New Delhi, India
Keywords and Phrases
Ceramics; Lanthanum Compounds; Metal-Insulator Transition; Pyroelectricity; Specific Heat; Stoichiometry; Strontium Compounds; Thermal Conductivity; Thermal Diffusivity
International Standard Serial Number (ISSN)
0021-8979
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2003 American Institute of Physics (AIP), All rights reserved.
Publication Date
01 Sep 2003
