Title :
Preparation and thermoelectric properties of Li-doped Ca0.05 Ni0.95O
Author :
Wu, J.B. ; Nan, J. ; Zhou, X.S. ; Chen, S.L. ; Nan, C.W.
Author_Institution :
Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China
Abstract :
Thermoelectric properties of Li-doped NiO and Li-doped Ca0.05 Ni0.95O, with Ni substituted by Ca in order to alter the lattice structure, were investigated in high temperature region. The oxide powder was prepared by a soft chemical approach, and then was sintered in form of compressed pallets. The chemical processing greatly shortens the overall preparation time period. Seebeck coefficient, electrical conductivity and thermal conductivity of the oxide samples were similar to those of the samples prepared via traditional solid-state approach. The novel chemical processing is effective to prepare the oxide ceramics
Keywords :
Seebeck effect; calcium compounds; ceramics; crystal structure; electrical conductivity; lithium; nickel compounds; semiconductor materials; sintering; thermal conductivity; Ca0.05Ni0.95O:Li; Li-doped Ca0.05Ni0.95O; NiO; NiO:Li; Seebeck coefficient; chemical processing; electrical conductivity; high temperature region; lattice structure; oxide ceramics; oxide powder; preparation; preparation time; sintered compressed pallets; soft chemical approach; thermal conductivity; thermoelectric properties; Calcination; Conductivity measurement; Electric variables measurement; Nickel; Powders; Solids; Temperature dependence; Thermal conductivity; Thermoelectricity; X-ray scattering;
Conference_Titel :
Thermoelectrics, 2001. Proceedings ICT 2001. XX International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-7205-0
DOI :
10.1109/ICT.2001.979867
