粉末冶金法合成n型PbTe

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI:10.1109/ICT.2001.979843

Y. Gelbstein, Z. Dashevsky, M.P. Dariel

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引用次数: 10

摘要

采用粉末冶金技术制备了掺杂PbI/ sub2 /的均匀和梯度PbTe样品。采用扫描电镜(SEM)、能谱仪(EDS)、x射线衍射仪(XRD)对样品进行了表征，并对其输运性质进行了测定。从粉末粒度、压实压力、烧结参数等方面对制备工艺进行了优化。在实验确定的输运测量结果的基础上，计算了在50 ~ 500/spl℃温度范围内最佳功率因数的掺杂浓度分布。

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Synthesis of n-type PbTe by powder metallurgy

Homogeneous and graded PbTe samples doped with PbI/sub 2/ were prepared using powder metallurgical techniques. The samples were examined by SEM, EDS, XRD, and their transport properties were determined. The preparation procedures were optimized with respect to powder particle size, compaction pressure, and sintering parameters. Dopant concentration profiles for optimal power factor in the 50 to 500/spl deg/C temperature range were calculated on the basis of the experimentally determined transport measurements results.

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来源期刊

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)

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