ORIENTED ZINC OXIDE BASED THERMOELECTRIC CONVERSION MATERIAL AND THERMOELECTRIC CONVERSION DEVICE USING IT

摘要

PROBLEM TO BE SOLVED: To provide an oriented zinc oxide based thermoelectric conversion material useful as a thermoelectric conversion material, a thermoelectric element and a thermoelectric conversion device or the like.

SOLUTION: A thermoelectric zinc oxide based sintered body comprising a zinc oxide as a principal component wherein a c-axis orientation by a Lotgering method is 0.9 or larger and relative density is 95% or larger at an X-ray diffraction peak on the particular face of the sintered body, and an excellent oriented thermoelectric conversion material and an excellent thermoelectric element with high electric conductivity or the like manufactured by applying a magnetic field to slurry including a zinc oxide based thermoelectric material powder, orienting the material powder while rotating the slurry, solidifying the slurry to manufacture a compact and thereafter sintering the compact can be provided.

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