Thermoelectric Properties of Ca0.5−xSr0.5LuxMnO3−δ Manganites

IF 0.9 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Inorganic Materials Pub Date : 2024-03-19 DOI:10.1134/S0020168523120051
E. I. Konstantinova, V. A. Litvinov, M. A. Ryzhkov, A. D. Koryakov, I. A. Leonidov
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Abstract

Using electrical conductivity (σ), Seebeck coefficient (S), thermal expansion, specific heat, and thermal diffusivity measurements in air in the temperature range 300–1200 K, we have determined the thermal conductivity (κ), thermoelectric power factor (S2σ), and thermoelectric figure of merit (ZT = S2σT/κ) of Ca0.5−xSr0.5LuxMnO3−δ (x = 0.05, 0.10, 0.15, 0.20) manganites. The Ca0.45Sr0.5Lu0.05MnO3−δ material has been shown to have the highest S2σ and ZT owing to its high S and low κ.

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Ca0.5-xSr0.5LuxMnO3-δ 锰矿的热电特性
摘要 通过测量 300-1200 K 温度范围内空气中的电导率 (σ)、塞贝克系数 (S)、热膨胀率、比热和热扩散率,我们确定了 Ca0.5-xSr0.5LuxMnO3-δ (x = 0.05、0.10、0.15、0.20) 锰矿的热导率 (κ)、热功率因数 (S2σ) 和热电功勋值 (ZT = S2σT/κ) 。Ca0.45Sr0.5Lu0.05MnO3-δ 材料由于具有高 S 和低 κ,因此具有最高的 S2σ 和 ZT。
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来源期刊
Inorganic Materials
Inorganic Materials 工程技术-材料科学:综合
CiteScore
1.40
自引率
25.00%
发文量
80
审稿时长
3-6 weeks
期刊介绍: Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.
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