Thermoelectric properties of YbCd2Sb2 doped by Mg
文献类型：期刊论文
| 作者 | Cao, Qigao1,2; Zheng, Jing1; Zhang, Ke1; Ma, Guang1 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2016-09-25 |
| 卷号 | 680页码:278-282 |
| 关键词 | YbCd2-xMgxSb2 Thermoelectric properties Thermoelectric materials Zintl phase |
| 英文摘要 | p-type YbCd2-xMgxSb2 (x = 0.1, 0.2, 0.4, 0.6, 0.8) Zintl phases have been synthesized via melting reaction followed by suitable cooling, annealing, grinding, and spark plasma sintering (SPS) densification processes. The effects of isoelectronic substitution of Mg for Cd on thermoelectric properties have been investigated. Electrical conductivity, Seebeck coefficient, and thermal conductivity measurements have been performed as a function of temperature from 300 to 650 K. The XRD patterns show that the solubility limit x of Mg in the YbCd2-xMgxSb2 is less than 0.8. With increasing Mg content x, the cell parameters a and c of the YbCd2-xMgxSb2 compounds decrease. The isoelectronic substitution of Mg for Cd leads to a remarkable decrease in total thermal conductivity and an increase in Seebeck coefficient, though a slightly decease in electrical conductivity. As a result, the maximum dimensionless figure of merit ZT of 1.08 is obtained at 650 K for YbCd1.9Mg0.1Sb2. Compared with the ZT of 0.78 at 650 K in the unsubstituted YbCd2Sb2, it is improved greatly by 38%. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000376109000041 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23100]  |
| 专题 | 上海硅酸盐研究所_透明光功能无机材料重点实验室_期刊论文 |
| 作者单位 | 1.Northwest Inst Nonferrous Met Res, 96 Weiyang Rd, Xian 710016, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Qigao,Zheng, Jing,Zhang, Ke,et al. Thermoelectric properties of YbCd2Sb2 doped by Mg[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,680:278-282. |
| APA | Cao, Qigao,Zheng, Jing,Zhang, Ke,&Ma, Guang.(2016).Thermoelectric properties of YbCd2Sb2 doped by Mg.JOURNAL OF ALLOYS AND COMPOUNDS,680,278-282. |
| MLA | Cao, Qigao,et al."Thermoelectric properties of YbCd2Sb2 doped by Mg".JOURNAL OF ALLOYS AND COMPOUNDS 680(2016):278-282. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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