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| Zn、Pr共掺In2O3陶瓷材料的高温热电传输性能 | |
| 引用本文： | 成波,刘勇,刘大博,林元华,南策文.Zn、Pr共掺In2O3陶瓷材料的高温热电传输性能[J].功能材料,2012,43(14):1825-1828. |
| 作者姓名： | 成波 刘勇 刘大博 林元华 南策文 |
| 作者单位： | 1. 北京航空材料研究院结构钢、功能材料及热处理工艺实验室,北京,100095 2. 清华大学材料科学与工程系,北京100084 北京科技大学冶金与生态工程学院,北京100083 3. 清华大学材料科学与工程系,北京,100084 |
| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目，国家高技术研究发展计划(863计划)资助项目，北京航空材料研究院创新基金的资助 |
| 摘 要： | 利用放电等离子SPS烧结工艺制备得到Zn、Pr共掺的In2O3多晶陶瓷材料。通过研究材料的热电传输性能和微观结构,发现共掺工艺对SPS烧结的In2O3陶瓷材料的传输性能有着显著的影响,其结构为多孔结构。低浓度共掺的样品在测试温度范围内能够得到较高的电导率(约100S/m)和热电势(约200μV/K)。其中试样In1.92(Pr,Zn)0.08O3的热导率973K最低为2.5W/(m.K),该样品可获得最高的热电功率因子3.5×10-4 W/(m.K2),对应其热电优值0.10。其性能表明利用放电等离子SPS烧结工艺制备的In2O3基陶瓷作为n型高温热电材料具有很好的潜力。 |
| 关 键 词： | 热电 In2O3 电学传输 热导率 |
The high temperature transport and thermoelectric properties of the Zn,Pr co-doping In2O3 ceramics |
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| CHENG Bo,LIU Yong,LIU Da-bo,LIN Yuan-hua,NAN Ce-wen.The high temperature transport and thermoelectric properties of the Zn,Pr co-doping In2O3 ceramics[J].Journal of Functional Materials,2012,43(14):1825-1828. | |
| Authors: | CHENG Bo LIU Yong LIU Da-bo LIN Yuan-hua NAN Ce-wen |
| Affiliation: | 1.Laboratory of Structural Steel,Functional Materials and Heat Treatment Processing Technology, Institute of Aeronautical Materials,Beijing 100095,China; 2.State Key Laboratory of New Ceramics and Fine Processing,Department of Materials Science and Engineering,Tsinghua University,Beijing 100084,China; 3.School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China) |
| Abstract: | The polycrystalline In2O3 ceramics co-doped with Zn,Pr were prepared through the spark plasma sintering process.Both thermoelectric transport properties and microstructure of the ceramics were investigated.The co-doped In2O3 by SPS had a remarkable effect on the transport properties.Large electrical conductivity(about100S/m) and thermopower(about 200μV/K) was observed in dilute Co doped sample.The maximum power factor was found in In1.92(Pr,Zn)0.08O3 sample as 3.5 ×10-4 W/(m·K2) at 973 K with the ZT value up to 0.10.It reveals that In2O3 polycrystalline ceramics prepared by a spark plasma sintering thus can be a good candidate for n-type thermoelectric materials. |
| Keywords: | thermoelectric In2O3 electrical transport thermal conductivity |
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