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Effect of Cooling Rate on Microstructural Homogeneity and Grain Size of n-Type Si-Ge Thermoelectric Alloy by Melt Spinning

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Abstract

n-Type Si-Ge thermoelectric alloys were prepared using a melt spinning (MS) process, and then the microstructures of the samples were investigated. The alloys studied were ribbon shaped with a thickness of about 30 μm. Scanning electron microscopy (SEM) along with energy-dispersive spectrometry (EDS) and x-ray diffraction (XRD) showed a predictable, homogeneous, fine-grained microstructure at the high cooling rate, different from those of samples created by slow solidification (SS).

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Authors and Affiliations

  1. Energy Materials and Technology Institute, General Research Institute of Nonferrous Metals, Beijing, 100088, China

    Pan Zhang, Zhong Wang, Hui Chen, Haijun Yu, Lei Zhu & Xuyu Jian

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  1. Pan Zhang
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  2. Zhong Wang
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  3. Hui Chen
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  4. Haijun Yu
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  5. Lei Zhu
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  6. Xuyu Jian
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Correspondence to Zhong Wang.

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Zhang, P., Wang, Z., Chen, H. et al. Effect of Cooling Rate on Microstructural Homogeneity and Grain Size of n-Type Si-Ge Thermoelectric Alloy by Melt Spinning. J. Electron. Mater. 39, 2251–2254 (2010). https://doi.org/10.1007/s11664-010-1314-1

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  • DOI: https://doi.org/10.1007/s11664-010-1314-1

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