{"title":"Preparation and thermoelectric properties of Co/sub x/Fe/sub y/Ni/sub 2/Sb/sub 3/ (x+y+z=1, x=0 to 1, y=z) sintered samples","authors":"T. Souma, M. Ohtaki","doi":"10.1109/ICT.2005.1519904","DOIUrl":null,"url":null,"abstract":"Eleven sintered samples of the CoxFeyNizSb3 (x+y+z=1, x=0 to 1, y=z) compounds have been successfully prepared using hot-pressing technique and the thermoelectric properties of the samples have been measured between 300 and 700 K. The purities and densities for the sintered samples exceed 93 mass% and 80 % of XRD density, respectively. The thermopower of the compounds is in the range of -150 to 200 µW/K and shifts from p-type to n-type with increasing the value of y+z. The electrical conductivity for the samples shows a semiconductor like behavior. The power factors for the present samples show several µW/K 2 cm. The possibility for improvement in the thermoelectric performance will be dicussed by optimizing the Fe/Ni ratio in the compounds.","PeriodicalId":422400,"journal":{"name":"ICT 2005. 24th International Conference on Thermoelectrics, 2005.","volume":"96 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ICT 2005. 24th International Conference on Thermoelectrics, 2005.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICT.2005.1519904","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Eleven sintered samples of the CoxFeyNizSb3 (x+y+z=1, x=0 to 1, y=z) compounds have been successfully prepared using hot-pressing technique and the thermoelectric properties of the samples have been measured between 300 and 700 K. The purities and densities for the sintered samples exceed 93 mass% and 80 % of XRD density, respectively. The thermopower of the compounds is in the range of -150 to 200 µW/K and shifts from p-type to n-type with increasing the value of y+z. The electrical conductivity for the samples shows a semiconductor like behavior. The power factors for the present samples show several µW/K 2 cm. The possibility for improvement in the thermoelectric performance will be dicussed by optimizing the Fe/Ni ratio in the compounds.
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