{"title":"SPS法制备TiCoSb, ZrCoSb, HfCoSb的热电和热物理性质","authors":"T. Sekimoto, K. Kurosaki, H. Muta, S. Yamasaka","doi":"10.1109/ICT.2005.1519955","DOIUrl":null,"url":null,"abstract":"Half-Heusler compounds TiCoSb, ZrCoSb, HfCoSb were prepared by a spark plasma sintering (SFS) technique. Their thermoelectric and thermophysical properties were measured. The band gap energy estimated from the electrical resistivity becomes small in the following order: TiCoSb (0.16 and 0.40 eV), ZrCoSb (0.14 eV), HfCoSb (0.07 eV). The largest thermoelectric power is obtained as -304 /spl mu/V/K at 641 K for TiCoSb. The thermal conductivity and Debye temperature become small in the following order: TiCoSb, ZrCoSb, Hi7CoSb. The contribution to the thermal conductivity is mainly due to the lattice contribution. The maximum value of ZT is 0.020 at 986 K for ZrCoSb.","PeriodicalId":422400,"journal":{"name":"ICT 2005. 24th International Conference on Thermoelectrics, 2005.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"Thermoelectric and thermophysical properties of TiCoSb, ZrCoSb, HfCoSb prepared by SPS\",\"authors\":\"T. Sekimoto, K. Kurosaki, H. Muta, S. Yamasaka\",\"doi\":\"10.1109/ICT.2005.1519955\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Half-Heusler compounds TiCoSb, ZrCoSb, HfCoSb were prepared by a spark plasma sintering (SFS) technique. Their thermoelectric and thermophysical properties were measured. The band gap energy estimated from the electrical resistivity becomes small in the following order: TiCoSb (0.16 and 0.40 eV), ZrCoSb (0.14 eV), HfCoSb (0.07 eV). The largest thermoelectric power is obtained as -304 /spl mu/V/K at 641 K for TiCoSb. The thermal conductivity and Debye temperature become small in the following order: TiCoSb, ZrCoSb, Hi7CoSb. The contribution to the thermal conductivity is mainly due to the lattice contribution. The maximum value of ZT is 0.020 at 986 K for ZrCoSb.\",\"PeriodicalId\":422400,\"journal\":{\"name\":\"ICT 2005. 24th International Conference on Thermoelectrics, 2005.\",\"volume\":\"25 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2005-06-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ICT 2005. 24th International Conference on Thermoelectrics, 2005.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICT.2005.1519955\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ICT 2005. 24th International Conference on Thermoelectrics, 2005.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICT.2005.1519955","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Thermoelectric and thermophysical properties of TiCoSb, ZrCoSb, HfCoSb prepared by SPS
Half-Heusler compounds TiCoSb, ZrCoSb, HfCoSb were prepared by a spark plasma sintering (SFS) technique. Their thermoelectric and thermophysical properties were measured. The band gap energy estimated from the electrical resistivity becomes small in the following order: TiCoSb (0.16 and 0.40 eV), ZrCoSb (0.14 eV), HfCoSb (0.07 eV). The largest thermoelectric power is obtained as -304 /spl mu/V/K at 641 K for TiCoSb. The thermal conductivity and Debye temperature become small in the following order: TiCoSb, ZrCoSb, Hi7CoSb. The contribution to the thermal conductivity is mainly due to the lattice contribution. The maximum value of ZT is 0.020 at 986 K for ZrCoSb.
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