H. Suzuki, S. Mochizuki, S. Sugihara, K. Shiraishi, T. Kajikawa
{"title":"氧化粒子掺杂/spl β /-FeSi/sub - 2/的热电性能","authors":"H. Suzuki, S. Mochizuki, S. Sugihara, K. Shiraishi, T. Kajikawa","doi":"10.1109/ICT.1999.843354","DOIUrl":null,"url":null,"abstract":"We investigated thermoelectric properties of Fe-Si systems (/spl alpha/, /spl epsiv/ and /spl beta/-phase) with oxide particles diffused in. The oxides used here were La/sub 2/O/sub 3/, Yb/sub 2/O/sub 3/, Ag/sub 2/O, NiO and Cr/sub 2/O/sub 3/. They were sintered by solid reaction method, then they were annealed for 3 hours. We found that the shorter annealing time was obtained by adding a small amount of oxides, lattice thermal conductivity decreased by addition of Yb/sub 2/O/sub 3/. Interfacial effects were found that carriers moved between the solidified Ag and the Fe-Si systems by addition of Ag/sub 2/O, and the barrier between the oxides and the Fe-Si systems was observed by addition of La/sub 2/O/sub 3/ and Yb/sub 2/O/sub 3/. Figure of merit was the following in Fe/sub 0.92/Mn/sub 0.08/Si/sub 2/ after 3 hours annealing; Z=1.85/spl times/10/sup -4/ (K/sup -1/) for 3 wt% Yb/sub 2/O/sub 3/, Z=0.75/spl times/10 /sup 4/(K/sup -1/) for 3, 5 and 10 wt% Ag/sub 2/O and the unadded.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Thermoelectric properties of /spl beta/-FeSi/sub 2/ with oxide-particles doping\",\"authors\":\"H. Suzuki, S. Mochizuki, S. Sugihara, K. Shiraishi, T. Kajikawa\",\"doi\":\"10.1109/ICT.1999.843354\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We investigated thermoelectric properties of Fe-Si systems (/spl alpha/, /spl epsiv/ and /spl beta/-phase) with oxide particles diffused in. The oxides used here were La/sub 2/O/sub 3/, Yb/sub 2/O/sub 3/, Ag/sub 2/O, NiO and Cr/sub 2/O/sub 3/. They were sintered by solid reaction method, then they were annealed for 3 hours. We found that the shorter annealing time was obtained by adding a small amount of oxides, lattice thermal conductivity decreased by addition of Yb/sub 2/O/sub 3/. Interfacial effects were found that carriers moved between the solidified Ag and the Fe-Si systems by addition of Ag/sub 2/O, and the barrier between the oxides and the Fe-Si systems was observed by addition of La/sub 2/O/sub 3/ and Yb/sub 2/O/sub 3/. Figure of merit was the following in Fe/sub 0.92/Mn/sub 0.08/Si/sub 2/ after 3 hours annealing; Z=1.85/spl times/10/sup -4/ (K/sup -1/) for 3 wt% Yb/sub 2/O/sub 3/, Z=0.75/spl times/10 /sup 4/(K/sup -1/) for 3, 5 and 10 wt% Ag/sub 2/O and the unadded.\",\"PeriodicalId\":253439,\"journal\":{\"name\":\"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)\",\"volume\":\"81 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1999-08-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"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.1999.843354\",\"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.1999.843354","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Thermoelectric properties of /spl beta/-FeSi/sub 2/ with oxide-particles doping
We investigated thermoelectric properties of Fe-Si systems (/spl alpha/, /spl epsiv/ and /spl beta/-phase) with oxide particles diffused in. The oxides used here were La/sub 2/O/sub 3/, Yb/sub 2/O/sub 3/, Ag/sub 2/O, NiO and Cr/sub 2/O/sub 3/. They were sintered by solid reaction method, then they were annealed for 3 hours. We found that the shorter annealing time was obtained by adding a small amount of oxides, lattice thermal conductivity decreased by addition of Yb/sub 2/O/sub 3/. Interfacial effects were found that carriers moved between the solidified Ag and the Fe-Si systems by addition of Ag/sub 2/O, and the barrier between the oxides and the Fe-Si systems was observed by addition of La/sub 2/O/sub 3/ and Yb/sub 2/O/sub 3/. Figure of merit was the following in Fe/sub 0.92/Mn/sub 0.08/Si/sub 2/ after 3 hours annealing; Z=1.85/spl times/10/sup -4/ (K/sup -1/) for 3 wt% Yb/sub 2/O/sub 3/, Z=0.75/spl times/10 /sup 4/(K/sup -1/) for 3, 5 and 10 wt% Ag/sub 2/O and the unadded.
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