Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)最新文献_第9页

The effect of TiB/sub 2/ addition on the thermoelectric properties of B/sub 4/C ceramics TiB/ sub2 /添加量对B/ sub4 /C陶瓷热电性能的影响

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979885

K. Cai, C. Nan

引用次数: 0

Preparation and thermoelectric properties of Li-doped Ca/sub 0.05/Ni/sub 0.95/O li掺杂Ca/sub 0.05/Ni/sub 0.95/O的制备及其热电性能

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979867

J.B. Wu, J. Nan, X.S. Zhou, S.L. Chen, C. Nan

引用次数: 1

Cooling performance of free convected thermoelectric air conditioner 自由对流热电空调的制冷性能

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979928

C. Lertsatitthanakorn, J. Hirunlabh, J. Khedari, H. Scherrer

引用次数: 11

Transport and magnetic properties of Co/sub 1-x/Ni/sub x/Sb/sub 3/ with x less than 0.01 当x < 0.01时Co/sub - 1-x/Ni/sub -x/ Sb/sub - 3/的输运和磁性能

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979823

J. Dyck, W. Chen, J. Yang, G. Meisner, C. Uher

{"title":"Transport and magnetic properties of Co/sub 1-x/Ni/sub x/Sb/sub 3/ with x less than 0.01","authors":"J. Dyck, W. Chen, J. Yang, G. Meisner, C. Uher","doi":"10.1109/ICT.2001.979823","DOIUrl":"https://doi.org/10.1109/ICT.2001.979823","url":null,"abstract":"The filled skutterudite compounds based on the binary skutterudite CoSb/sub 3/ are currently being investigated for their potential application as thermoelectric materials. One route to optimization of these compounds is by doping on the Co site. An obvious candidate for an n-type dopant is Ni, because it has one more electron in its valence shell than Co. We present electrical resistivity, thermopower, Hall effect and magnetic susceptibility measurements on polycrystalline, n-type Co/sub 1-x/Ni/sub x/Sb/sub 3/ with x less than 0.01. A model which takes into account conduction of electrons residing in the conduction band in addition to hopping conduction within an impurity \"band\" formed by the Ni atoms is consistent with the observed behavior. The doping dependence suggests Ni acts as an electron donor thus taking the tetravalent state Ni/sup 4+/ and assuming the d/sup 6/ electronic configuration. The measured magnetic susceptibility suggests a paramagnetic state implying that Ni may carry a moment at least at low temperatures. We attempt to tie together the transport and magnetic susceptibility data to provide a consistent picture of the overall behavior.","PeriodicalId":203601,"journal":{"name":"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125657594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and high temperature thermoelectric properties of n-type Ba/sub y/Ni/sub x/Co/sub 4-x/Sb/sub 12/ n型Ba/sub y/Ni/sub x/Co/sub 4-x/Sb/sub 12/的合成及高温热电性能

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979831

X.F. Tang, L.D. Chen, T. Goto, J. Dyck, W. Chen, C. Uher, T. Hirai, R. Yuan

引用次数: 1

Effect of Na-site partial substitutions on the thermoelectric properties of layered oxide Na/sub x/Co/sub 2/O/sub 4/ Na位部分取代对层状氧化物Na/sub x/Co/sub 2/O/sub 4/热电性能的影响

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979849

T. Nagira, M. Ito, S. Katsuyama, Kazuhiko Majma, H. Nagai

{"title":"Effect of Na-site partial substitutions on the thermoelectric properties of layered oxide Na/sub x/Co/sub 2/O/sub 4/","authors":"T. Nagira, M. Ito, S. Katsuyama, Kazuhiko Majma, H. Nagai","doi":"10.1109/ICT.2001.979849","DOIUrl":"https://doi.org/10.1109/ICT.2001.979849","url":null,"abstract":"Polycrystalline samples of (Na/sub 1-y/M/sub y/)/sub x/Co/sub 2/O/sub 4/ (M=K Sr, Y, Nd, Sm and Yb; y=0.01/spl sim/0.35) were prepared by using a solid state reaction method. The effects of the Na-site partial substitutions on the thermoelectric properties of Na/sub x/Co/sub 2/O/sub 4/ from room temperature to 1073 K were investigated. For the Sr-substitution sample, the thermoelectric power and the resistivity increased, and the electronic contribution to the thermal conductivity decreased compared to the non-substitution sample. These effects mean the reduction of the carrier density. As a result of that, for the Sr-substitution sample, the figure of merit was slightly improved. On the other hand, for rare-earth-metal-substitution samples, the anomalous substitution effects were observed. That is, in spite of the fact that the electronic contribution to the thermal conductivity decreased, the thermoelectric power decreased and the electrical resistivity increased. For all substitution samples except for Y-substitution, the lattice contribution to the thermal conductivity decreased because of the phonon scattering resulting in the decrease in the thermal conductivity.","PeriodicalId":203601,"journal":{"name":"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)","volume":"66 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133168051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonequilibrium electron and phonon transport in heterostructures for energy conversion 能量转换中异质结构中的非平衡电子和声子输运

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979899

T. Zeng, Gang Chen

引用次数: 4

Preparation and interface analyses of a P-type segmented FeSi/sub 2//Bi/sub 2/Te/sub 3/ material p型分节FeSi/ sub2 //Bi/ sub2 /Te/ sub3 /材料的制备及界面分析

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979890

Cui Jiaolin, Zhao Xin-bing, Zhou Bang-chang, Xu Xuebo, Bao Mingdong

{"title":"Preparation and interface analyses of a P-type segmented FeSi/sub 2//Bi/sub 2/Te/sub 3/ material","authors":"Cui Jiaolin, Zhao Xin-bing, Zhou Bang-chang, Xu Xuebo, Bao Mingdong","doi":"10.1109/ICT.2001.979890","DOIUrl":"https://doi.org/10.1109/ICT.2001.979890","url":null,"abstract":"P-type segmented FeSi/sub 2//Bi/sub 2/Te/sub 3/ thermoelectric material has been prepared by the dip coating procedure using Sn/sub 95/Ag/sub 5/ as the bridge material. An apparent Seebeck coefficient of about 225 /spl mu/V/K is obtained, which is significantly higher than those of both homogeneous materials /spl beta/-FeSi/sub 2/ and Bi/sub 2/Te/sub 3/ in the same temperature range. The maximum power output of the segmented FeSi/sub 2//Bi/sub 2/Te/sub 3/ is approximately 2.5 times that of the monolithic material /spl beta/-FeSi/sub 2/ in the same temperature range. This implies that not only does the segmented material benefit from Bi/sub 2/Te/sub 3/ at the low temperature side, but it also makes fully use of the characteristics of /spl beta/-FeSi/sub 2/ at high temperature. SEM and EDAX analyses revealed that interdiffusions do to some extent exist in all interfaces. A eutectic mixture could easily be formed since its melting point is lower than the annealing temperature, which trigger the exfoliation in the interface between Sn/sub 95/Ag/sub 5/ and Bi/sub 2/Te/sub 3/ under the stress due to the thermal expansion coefficient mismatch of both materials. Although the maximum power output of the material with a Ni layer sandwiched between Sn/sub 95/Ag/sub 5/ and Bi/sub 2/Te/sub 3/ is a little lower than those of the materials without Ni layer, the thermal stability can be significantly improved.","PeriodicalId":203601,"journal":{"name":"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)","volume":"417 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115925813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of n-type PbTe by powder metallurgy 粉末冶金法合成n型PbTe

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979843

Y. Gelbstein, Z. Dashevsky, M.P. Dariel

引用次数: 10

Effects of oxide dispersion on thermoelectric properties of /spl beta/-FeSi/sub 2/ 氧化物分散对/spl β /-FeSi/sub 2/热电性能的影响

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI: 10.1109/ICT.2001.979873

M. Ito, H. Nagai, T. Tada, S. Katsuyama, K. Majima

{"title":"Effects of oxide dispersion on thermoelectric properties of /spl beta/-FeSi/sub 2/","authors":"M. Ito, H. Nagai, T. Tada, S. Katsuyama, K. Majima","doi":"10.1109/ICT.2001.979873","DOIUrl":"https://doi.org/10.1109/ICT.2001.979873","url":null,"abstract":"The effects of various oxide additions to hot-pressed /spl beta/-FeSi/sub 2/ on the thermoelectric properties were investigated. The oxides, such as TiO, SiO/sub 2/ or Y/sub 2/O/sub 3/, were dispersed in the /spl beta/ phase matrix by mechanical grinding. In the case of the sample with addition of an electric conductive oxide, TiO, the thermal conductivity. was reduced by TiO addition over the entire temperature range. On the other hand, the electrical resistivity of the sample with TiO addition was slightly lower than that of the sample without addition. From these results, the maximum figure of merit was obtained for the sample with 2 mass% TiO, which was about two times as large as that of the sample without addition. In the case of the sample with addition of an insulating oxide, SiO/sub 2/ or Y/sub 2/O/sub 3/, the addition of these insulating oxides significantly decreased the thermal conductivity. The. electrical resistivity increased when these oxides, especially Y/sub 2/O/sub 3/, were added, in contrast to the result in the case of the TiO addition. On the other hand, the thermoelectric power in the low temperature range was significantly enhanced by the addition of these oxides, particularly by the addition of 2 mass% Y/sub 2/O/sub 3/. From these results, the addition of these insulating oxides increased the figure of merit.","PeriodicalId":203601,"journal":{"name":"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126217587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6