{"title":"TiB/ sub2 /添加量对B/ sub4 /C陶瓷热电性能的影响","authors":"K. Cai, C. Nan","doi":"10.1109/ICT.2001.979885","DOIUrl":null,"url":null,"abstract":"B/sub 4/C-TiB/sub 2/ composites were prepared via hot-pressing. The thermal conductivity, electrical conductivity and Seebeck coefficient of samples containing 0, 12, 16, 20 vol% TiB/sub 2/ are measured from room temperature up to 1200 K. The results show that the electrical conductivity and thermal conductivity increase with TiB/sub 2/ content and that the Seebeck coefficient decreases with TiB/sub 2/ content. The value of dimensionless figure of merit of 12% TiB/sub 2/ sample is always higher than that of 0% TiB/sub 2/ sample in the whole temperature range, and that of 16% TiB/sub 2/ samples is also higher than that of 0% TiB/sub 2/ sample as T<700 K and similar as T>700K, while that of 20% TiB/sub 2/ samples is lower than that of 0% TiB/sub 2/ sample due to its higher thermal conductivities and lower Seebeck coefficients than those of 0% TiB/sub 2/ sample. These results indicate that it is possible to improve the thermoelectric properties of pure materials by selecting an optimum combination of different materials.","PeriodicalId":203601,"journal":{"name":"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2001-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The effect of TiB/sub 2/ addition on the thermoelectric properties of B/sub 4/C ceramics\",\"authors\":\"K. Cai, C. Nan\",\"doi\":\"10.1109/ICT.2001.979885\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"B/sub 4/C-TiB/sub 2/ composites were prepared via hot-pressing. The thermal conductivity, electrical conductivity and Seebeck coefficient of samples containing 0, 12, 16, 20 vol% TiB/sub 2/ are measured from room temperature up to 1200 K. The results show that the electrical conductivity and thermal conductivity increase with TiB/sub 2/ content and that the Seebeck coefficient decreases with TiB/sub 2/ content. The value of dimensionless figure of merit of 12% TiB/sub 2/ sample is always higher than that of 0% TiB/sub 2/ sample in the whole temperature range, and that of 16% TiB/sub 2/ samples is also higher than that of 0% TiB/sub 2/ sample as T<700 K and similar as T>700K, while that of 20% TiB/sub 2/ samples is lower than that of 0% TiB/sub 2/ sample due to its higher thermal conductivities and lower Seebeck coefficients than those of 0% TiB/sub 2/ sample. These results indicate that it is possible to improve the thermoelectric properties of pure materials by selecting an optimum combination of different materials.\",\"PeriodicalId\":203601,\"journal\":{\"name\":\"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)\",\"volume\":\"34 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2001-06-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICT.2001.979885\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICT.2001.979885","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The effect of TiB/sub 2/ addition on the thermoelectric properties of B/sub 4/C ceramics
B/sub 4/C-TiB/sub 2/ composites were prepared via hot-pressing. The thermal conductivity, electrical conductivity and Seebeck coefficient of samples containing 0, 12, 16, 20 vol% TiB/sub 2/ are measured from room temperature up to 1200 K. The results show that the electrical conductivity and thermal conductivity increase with TiB/sub 2/ content and that the Seebeck coefficient decreases with TiB/sub 2/ content. The value of dimensionless figure of merit of 12% TiB/sub 2/ sample is always higher than that of 0% TiB/sub 2/ sample in the whole temperature range, and that of 16% TiB/sub 2/ samples is also higher than that of 0% TiB/sub 2/ sample as T<700 K and similar as T>700K, while that of 20% TiB/sub 2/ samples is lower than that of 0% TiB/sub 2/ sample due to its higher thermal conductivities and lower Seebeck coefficients than those of 0% TiB/sub 2/ sample. These results indicate that it is possible to improve the thermoelectric properties of pure materials by selecting an optimum combination of different materials.
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