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Keyword: electrical resistance

Total Papers Found: 16
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Low-temperature thermoelectric characteristics of Ca32xYbxCo3.95Ga0.05O9+d (0 < x < 0.10)

Author(s): , ,

The thermoelectric properties of Ca3-x­­YbxCo3.95Ga0.05O9+delta where x = 0.00, 0.02, 0.05, and 0.10 were determined at temperatures less than 300 K. It was determined that the partial substitution of Yb3+ for ...

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Thermoelectric Properties of Ca1−xGdxMnO3−delta (0.00, 0.02, and 0.05) Systems

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The thermoelectric properties of the Ca1-xGdxMnO3-delta system where x= 0.00, 0.02, and 0.05 were evaluated. It was determined that the sample with the lowest electrical resistivity was the Ca0.95Gd0.05MnO3...

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Thermoelectric properties of Ca3-xEuxCo3.95Ga0.05O9+delta (0 < x < 0.10)

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The partial replacement of Ca2+ ions with Eu3+ in the Ca3Co3.95Ga0.05O9+delta system to give polycrystalline samples of Ca3-xEuxCo3.95Ga0.05O9+delta (x = 0.00, 0.02, and 0.10) was performed ...

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Thermoelectric properties of Ca3−xEuxCo4O9+delta (0

Author(s): , ,

The partial replacement of Ca2+ ions with Eu3+ in the Ca3Co3.95Ga0.05O9+delta system to give polycrystalline samples of Ca3-xEuxCo4O9+delta (x = 0.00, 0.05, and 0.10) was performed in ...

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Electronic transport of co-doped misfit-layered cobaltites

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Two series of co-doped mifit-layered cobaltites were prepared with compositions of Ca3-xYbxCo4-yAgyO9+delta and Ca3-xEuxCo4-yAgyO9+delta. All of the samples exhibited an increasing thermopower as temperature ...

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Improvement on the low-temperature thermoelectric characteristics of Ca3xYbxCo4O9bdelta (0rxr0.10)

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The low-temperature thermoelectric properties of Ca3-xYbxCo4O9+delta systems (x = 0, 0.02, 0.05, and 0.10). It was determined that these systems produced positive thermopower, indicating that the dominant carriers were holes. The electrical ...

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Low-temperature thermoelectric and magnetic properties of Ca3−x Bi x Co4O9+delta (0 < x < 0.30)

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Calcium is partially substituted by bismuth in the Ca3-xBixCoO9+delta (x=0.00, 0.05, 0.10, 0.15, 0.20, and 0.30) system in order to determine how this substitution affects the thermoelectric and magnetic properties of the system. ...

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Thermoelectric properties of n-type Ca1-xBixMnO3-delta (0.00, 0.02, and 0.05) system

Author(s): , ,

Calcium is partially substituted by bismuth in the Ca1-xBixMnO3-delta (x=0.00, 0.02, and 0.05) system in order to determine how this substitution affects the electrical resistivity, thermopower, and thermal conductivity. The ...

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Thermoelectric properties of Ca2.95Bi0.05Co4−xFexO9+delta (0 < x < 0.15)

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Thermoelectric materials are currently being researched as a source of energy in order to reduce carbon dioxide emissions. The efficiency of these materials depends on their Seebeck coefficient, electrical resistivity, ...

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