Improvement of textured Bi1.6Pb0.4Sr2Co1.8O thermoelectric performances by metallic Ag additions
Source abstract
Abstract
Bi1.6Pb0.4Sr2Co1.8Ox thermoelectric ceramics with small Ag additions (0, 1, and 3 wt%) have been successfully grown from the melt, using the laser floating zone method. Microstructure has shown a reduction in the amount of secondary phases and a better grain alignment with respect to the growth direction for an Ag content of 3 wt%. The microstructural evolution, as a function of Ag content, is confirmed with the electrical resistivity values, which show an important decrease for the 3 wt% Ag samples, leading to maximum power factor values of about 0.42 mW/K2 m at 650 °C, which are among the best results obtained in this type of material. © 2012 Elsevier Ltd and Techna Group S.r.l.
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Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Magnetic and transport properties of perovskites and related materials · Thermal properties of materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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