- Method of enhancing the thermoelectric properties and electrical conductivity in Ca-V oxide perovskite system by means of synthesizing the single phase

摘要

The present invention relates to a method for improving the thermal conductivity and electrical conductivity of a calcium-vanadium-based perovskite single phase synthesis, and more particularly, to a method for producing a calcium-vanadium-based perovskite single phase, And calcining the mixture in a reducing atmosphere _{CaM x V 1-x O 3} (0 x≤0.5, M is a Group IVB Ti, Zr or Hf) and Ca _1-y VO ₃ for producing a (0 y≤0.5) step; And sintering or spark plasma-sintering the CaM _x V _1-x O ₃ (0 _x ? 0.5, where M is a Group IVB element Ti, Zr or Hf) in vacuum. Vanadium-based perovskite single phase synthesis, and a method for improving electrical conductivity. As described above, according to the present invention, since the calcium-vanadium based perovskite oxide is perfectly formed in a single phase, the thermal conductivity of the material is greatly improved. Therefore, the thermoelectric material of higher performance and the application This possible action effect is expected.