| B掺杂Si80Ge20合金的快速制备及热电性能 |
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| 引用本文： | 罗文辉,李涵,郝文,胡小龙,唐新峰.B掺杂Si80Ge20合金的快速制备及热电性能[J].功能材料,2011,42(5):907-910. |
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| 作者姓名： | 罗文辉 李涵 郝文 胡小龙 唐新峰 |
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| 作者单位： | 武汉理工大学,材料复合新技术国家重点实验室,湖北,武汉,430070 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目 |
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| 摘 要： | 采用电弧熔炼、快速球磨结合放电等离子烧结快速制备了单相Si80Ge20Bx(x=0.5、1、1.5、2)热电材料,对烧结后试样进行了物相结构分析和热电性能表征.结果表明,B的引入导致样品载流子浓度增加,电导率随着B掺量增加而大幅增加,而Seebeck系数反之下降.B的固溶增加试样中点缺陷浓度而导致声子散射增加,热导率下...
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| 关 键 词： | B掺杂SiGe合金 电弧熔炼 快速球磨 放电等离子烧结 热电性能 |
Rapid synthesis of B-doped Si_(80)Ge_(20) alloy and their thermoelectric properties |
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| LUO Wen-hui,LI Han,HAO Wen,HU Xiao-long,TANG Xin-feng.Rapid synthesis of B-doped Si_(80)Ge_(20) alloy and their thermoelectric properties[J].Journal of Functional Materials,2011,42(5):907-910. |
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| Authors: | LUO Wen-hui LI Han HAO Wen HU Xiao-long TANG Xin-feng |
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| Affiliation: | LUO Wen-hui,LI Han,HAO Wen,HU Xiao-long,TANG Xin-feng(State Key Laboratory of Advanced Technology for Material Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | p-type polycrystalline Si80Ge20Bx(x=0.5,1,1.5,2) alloy were prepared by arc melting and ball milling followed by spark plasma sintering(SPS) method.The phase composition and the microstructure of the bulk were investigated,and their thermoelectric properties were measured form room terperature to 1000K.XRD patterns show that all samples are single phase.No obvious segregation phenomenon was found in the bulks form the FESEM and EDS results.The carrier concentration increased significantly by B-addition.The ... |
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| Keywords: | B-doped SiGe alloy arc melting rapidly ball milling spark plasma sintering thermoelectric properties |
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