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US 2001/0017152 A1Published application
Complex oxide having high seebeck coefficient and high electric conductivity
AssigneeAgency of Industrial Science and Technology
InventorsRyoji Funahashi, Ichiro Matsubara, Satoshi Sodeoka
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Abstract
This invention provides a complex oxide comprising the features of: (i) being represented by the formula: Ca3-xRExCo4Oy wherein RE is a rare earth element, 0≦x≦0.5 and 8.5≦y≦10, (ii) having a Seebeck coefficient of 100 μV/K or more at a temperature of 300° C. or higher, and (iii) having an electric conductivity of 103 S/m or more at a temperature of 300° C. or higher. The complex oxide is composed of low-toxicity elements, excellent in heat resistance and chemical durability and high in thermoelectric conversion efficiency.
Claims4
A complex oxide comprising the features of:
- (i) being represented by the formula:
- Ca3-xRExCo4Oy wherein RE is a rare earth element, 0≦x≦0.5 and 8.5≦y≦10,
- (ii) having a Seebeck coefficient of 100 μV/K or more at a temperature of 300° C. or higher, and
- (iii) having an electric conductivity of 103 S/m or more at a temperature of 300° C. or higher.
1 more element
Dependencies are inferred from the claim text.