The Effect of (Ag, Ni, Zn)-Addition on the Thermoelectric Properties of Copper Aluminate

Polycrystalline bulk copper aluminate Cu(1-x-y)Ag(x)B(y)AlO(2) with B = Ni or Zn were prepared by spark plasma sintering and subsequent thermal treatment. The influence of partial substitution of Ag, Ni and Zn for Cu-sites in CuAlO(2) on the high temperature thermoelectric properties has been studie...

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Detalles Bibliográficos
Autores principales: Yanagiya, Shun-ichi, Van Nong, Ngo, Xu, Jianxiao, Pryds, Nini
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International 2010
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5525168/
http://dx.doi.org/10.3390/ma3010318
Descripción
Sumario:Polycrystalline bulk copper aluminate Cu(1-x-y)Ag(x)B(y)AlO(2) with B = Ni or Zn were prepared by spark plasma sintering and subsequent thermal treatment. The influence of partial substitution of Ag, Ni and Zn for Cu-sites in CuAlO(2) on the high temperature thermoelectric properties has been studied. The addition of Ag and Zn was found to enhance the formation of CuAlO(2) phase and to increase the electrical conductivity. The addition of Ag or Ag and Ni on the other hand decreases the electrical conductivity. The highest power factor of 1.26 × 10(-4) W/mK(2) was obtained for the addition of Ag and Zn at 1,060 K, indicating a significant improvement compared with the non-doped CuAlO(2) sample.

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