Sb掺杂TiNiSn/sub - 1-x/Sb/sub -x/ half-Heusler体系的热电性质

S. Bhattacharya, V. Ponnambalam, A. Pope, P. Alboni, Y. Xia, T. Tritt, S. J. Poon
{"title":"Sb掺杂TiNiSn/sub - 1-x/Sb/sub -x/ half-Heusler体系的热电性质","authors":"S. Bhattacharya, V. Ponnambalam, A. Pope, P. Alboni, Y. Xia, T. Tritt, S. J. Poon","doi":"10.1109/ICT.1999.843398","DOIUrl":null,"url":null,"abstract":"Half Heusler alloys, MNiSn (M=Zr, Hf, Ti) systems, have recently been studied for their potential as new thermoelectric materials. They have shown both high thermopower (/spl alpha/) values (40-250 /spl mu/V/K) and reasonable values of electrical resistivity, /spl rho/ (0.1-8 m/spl Omega/-cm). However, the thermal conductivity in these systems is high for a potential thermoelectric material, on the order of 4-10 W/m-K. In an effort to reduce the thermal conductivity through alloy scattering, Sb is substituted on the Sn site with compositions TiNiSn/sub 1-x/Sb/sub x/ where x=0 to 0.1. With this substitution, the thermopower is only slightly reduced while the resistivity is reduced by approximately one order of magnitude resulting in marked improvement in the power factor (/spl alpha//sup 2/T//spl rho/). Thermopower, resistivity, and thermal conductivity have been measured on a series of Sb doped TiNiSn samples from 10 K<T<300 K. Heat capacity and Hall measurements on these same samples are measured from 2 K to 350 K and will be discussed. A room temperature power factor in this system has been calculated to be as high as 1.4 W/m-K, making these materials interesting for potential thermoelectric applications.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Thermoelectric properties of Sb-doping in the TiNiSn/sub 1-x/Sb/sub x/ half-Heusler system\",\"authors\":\"S. Bhattacharya, V. Ponnambalam, A. Pope, P. Alboni, Y. Xia, T. Tritt, S. J. Poon\",\"doi\":\"10.1109/ICT.1999.843398\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Half Heusler alloys, MNiSn (M=Zr, Hf, Ti) systems, have recently been studied for their potential as new thermoelectric materials. They have shown both high thermopower (/spl alpha/) values (40-250 /spl mu/V/K) and reasonable values of electrical resistivity, /spl rho/ (0.1-8 m/spl Omega/-cm). However, the thermal conductivity in these systems is high for a potential thermoelectric material, on the order of 4-10 W/m-K. In an effort to reduce the thermal conductivity through alloy scattering, Sb is substituted on the Sn site with compositions TiNiSn/sub 1-x/Sb/sub x/ where x=0 to 0.1. With this substitution, the thermopower is only slightly reduced while the resistivity is reduced by approximately one order of magnitude resulting in marked improvement in the power factor (/spl alpha//sup 2/T//spl rho/). Thermopower, resistivity, and thermal conductivity have been measured on a series of Sb doped TiNiSn samples from 10 K<T<300 K. Heat capacity and Hall measurements on these same samples are measured from 2 K to 350 K and will be discussed. A room temperature power factor in this system has been calculated to be as high as 1.4 W/m-K, making these materials interesting for potential thermoelectric applications.\",\"PeriodicalId\":253439,\"journal\":{\"name\":\"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)\",\"volume\":\"10 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1999-08-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICT.1999.843398\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICT.1999.843398","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

半Heusler合金,MNiSn (M=Zr, Hf, Ti)体系,作为新型热电材料的潜力最近得到了研究。它们具有较高的热功率(/spl alpha/)值(40-250 /spl mu/V/K)和合理的电阻率值(/spl rho/ (0.1-8 m/spl Omega/-cm)。然而,对于潜在的热电材料来说,这些系统的导热系数很高,约为4-10 W/m-K。为了通过合金散射降低导热系数,在Sn位点上用TiNiSn/sub - 1-x/Sb/sub -x/ (x=0 ~ 0.1)代替Sb。通过这种替换,热功率仅略微降低,而电阻率降低了大约一个数量级,从而显著改善了功率因数(/spl alpha//sup 2/T//spl rho/)。在10 K本文章由计算机程序翻译,如有差异,请以英文原文为准。
分享
查看原文 本刊更多论文
Thermoelectric properties of Sb-doping in the TiNiSn/sub 1-x/Sb/sub x/ half-Heusler system
Half Heusler alloys, MNiSn (M=Zr, Hf, Ti) systems, have recently been studied for their potential as new thermoelectric materials. They have shown both high thermopower (/spl alpha/) values (40-250 /spl mu/V/K) and reasonable values of electrical resistivity, /spl rho/ (0.1-8 m/spl Omega/-cm). However, the thermal conductivity in these systems is high for a potential thermoelectric material, on the order of 4-10 W/m-K. In an effort to reduce the thermal conductivity through alloy scattering, Sb is substituted on the Sn site with compositions TiNiSn/sub 1-x/Sb/sub x/ where x=0 to 0.1. With this substitution, the thermopower is only slightly reduced while the resistivity is reduced by approximately one order of magnitude resulting in marked improvement in the power factor (/spl alpha//sup 2/T//spl rho/). Thermopower, resistivity, and thermal conductivity have been measured on a series of Sb doped TiNiSn samples from 10 K
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信