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熔体旋甩法制备p型填充式方钴矿化合物Ce0.3Fe1.5Co2.5Sb12的微结构及热电性能

郭全胜 李涵 苏贤礼 唐新峰

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熔体旋甩法制备p型填充式方钴矿化合物Ce0.3Fe1.5Co2.5Sb12的微结构及热电性能

郭全胜, 李涵, 苏贤礼, 唐新峰

Microstructure and themoelectric properties of p-type filled skutterudite Ce0.3Fe1.5Co2.5Sb12 prepared by melt-spinning method

Guo Quan-Sheng, Li Han, Su Xian-Li, Tang Xin-Feng
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  • 采用熔体旋甩法结合放电等离子烧结技术(MS-SPS)制备了p型填充式方钴矿化合物Ce0.3Fe1.5Co2.5Sb12,研究了熔体旋甩工艺对微结构以及热电性能的影响规律.结果表明,较高的铜辊转速和较低的喷气压力有利于提高熔体的冷却速率,使带状产物晶粒细化.薄带经SPS烧结后得到致密、基本单相、晶粒尺寸均匀细小(150—300 nm)的块体.与传统方法制备的试样相比,MS-SPS试样虽然电导率有所降低,但因具有较大的Se
    Polycrystalline nanostructured bulk samples of p-type filled skutterudite Ce0.3Fe1.5Co2.5Sb12 have been prepared by melt-spinning (MS) method combined with spark plasma sintering (SPS). The effects of melt-spinning process on their microstructure and thermoelectric properties have been investigated. The results indicate that the ribbons have finer microstructure with the increasing cooling rate for melt-spun ribbons, resulting from the increasing copper wheel speed and decreasing ejection pressure. Compared with the sample prepared by traditional method, the samples prepared by MS-SPS method have higher power, factor due to the enhanced thermopower, despite the slightly reduced electrical conductivity. Meanwhile, the lattice thermal conductivity of the MS-SPS samples is significantly suppressed. Hence, the thermoelectric performance of the MS-SPS samples is greatly improved, and the figures of merit reach about 0.55 at 750 K.
    • 基金项目: 国家重点基础研究发展计划(973项目)(批准号:2007CB607501),国家自然科学基金重点项目(批准号:50731006,50672118)和国家111计划(批准号:B07040)资助的课题.
    [1]

    Rowe D M 2006 Thermoelectrics Handbook Macro to Nano (Boca Raton,FL/London: CRC Press/Taylor & Francis)

    [2]

    Tritt T M 1999 Science 283 804

    [3]

    Sharp J W, Jones E C, Williams R K, Martin P M, Sales B C 1995 J. Appl. Phys. 78 1013

    [4]

    Rowe D M 1995 CRC Handbook of Thermoelectrics(Boca Raton,FL:CRC Press)

    [5]

    Liu W S, Zhang B P, Zhao L D, Li J F 2008 Chem. Mater. 20 7526

    [6]

    Katsuyama S, Shichijo Y, Ito M, Majima K, Nagai H 1998 J. Appl.Phys. 84 6708

    [7]

    Tang X F,Chen L D, Goto T, Hirai T, Yuan R Z 2000 Acta Phys.Sin. 49 1120 (in Chinese) [唐新峰、陈立东、後藤孝、平井敏雄、袁润章 2000 物理学报 49 1120]

    [8]

    Sales B C,Mandrus D,Williams R K 1996 Science 272 1325

    [9]

    Lamberton G A, Bhattacharya S,Littleton R T, Kaeser M A, Tedstrom R H, Tritt T M, Yang J, Nolas G S 2002 Appl.Phys.Lett 80 598

    [10]

    Nolas G S, Kaeser M, Littleton R T,Tritt T M 2000 Appl. Phy. Lett. 77 1855

    [11]

    Chen L D, Kawahara T, Tang X F, Goto T, Hirai T, Dyck J S, Chen W, Uher C 2001 J.Appl.Phys. 90 1864

    [12]

    Hicks L D, Harman T C, Dresselhaus M S 1993 Appl.Phys. Lett. 63 3230

    [13]

    Toprak M S, Stiewe C, Platzek D, Williams S, Bertini L,Müller E, Gatti C, Zhang Y, Rowe M,Muhammed M 2004 Adv. Funct. Mater. 14 1189

    [14]

    Yu B L, Qi Q, Tang X F, Zhang Q J 2005 Acta Phys. Sin. 54 5763 (in Chinese) [余柏林、祁 琼、唐新峰、张清杰 2005 物理学报 54 5763]

    [15]

    Li H, Tang X F, Su X L, Zhang Q J 2009 Appl. Phys. Lett. 92 202114

    [16]

    Li H, Tang X F, Zhang Q J, Uher C 2009 Appl. Phys. Lett. 93 252109

    [17]

    Tang X F, Chen L D, Goto T, Hirai T 2000 Acta Phys.Sin. 49 2437(in Chinese) [唐新峰、陈立东、後藤孝、平井敏雄 2000 物理学报 49 2437]

    [18]

    Tang X F, Chen L D, Goto T, Hirai T 2000 Acta Phys.Sin. 49 2460(in Chinese) [唐新峰、陈立东、後藤孝、平井敏雄 2000 物理学报 49 2460]

    [19]

    Li H, Tang X F, Su X L, Zhang Q J, Uher C 2009 J.Phys.D:Appl.Phys. 42 145409

    [20]

    Li H, Tang X F, Cao W Q, Zhang Q J 2009 Chin. Phys.B 18 0287

  • [1]

    Rowe D M 2006 Thermoelectrics Handbook Macro to Nano (Boca Raton,FL/London: CRC Press/Taylor & Francis)

    [2]

    Tritt T M 1999 Science 283 804

    [3]

    Sharp J W, Jones E C, Williams R K, Martin P M, Sales B C 1995 J. Appl. Phys. 78 1013

    [4]

    Rowe D M 1995 CRC Handbook of Thermoelectrics(Boca Raton,FL:CRC Press)

    [5]

    Liu W S, Zhang B P, Zhao L D, Li J F 2008 Chem. Mater. 20 7526

    [6]

    Katsuyama S, Shichijo Y, Ito M, Majima K, Nagai H 1998 J. Appl.Phys. 84 6708

    [7]

    Tang X F,Chen L D, Goto T, Hirai T, Yuan R Z 2000 Acta Phys.Sin. 49 1120 (in Chinese) [唐新峰、陈立东、後藤孝、平井敏雄、袁润章 2000 物理学报 49 1120]

    [8]

    Sales B C,Mandrus D,Williams R K 1996 Science 272 1325

    [9]

    Lamberton G A, Bhattacharya S,Littleton R T, Kaeser M A, Tedstrom R H, Tritt T M, Yang J, Nolas G S 2002 Appl.Phys.Lett 80 598

    [10]

    Nolas G S, Kaeser M, Littleton R T,Tritt T M 2000 Appl. Phy. Lett. 77 1855

    [11]

    Chen L D, Kawahara T, Tang X F, Goto T, Hirai T, Dyck J S, Chen W, Uher C 2001 J.Appl.Phys. 90 1864

    [12]

    Hicks L D, Harman T C, Dresselhaus M S 1993 Appl.Phys. Lett. 63 3230

    [13]

    Toprak M S, Stiewe C, Platzek D, Williams S, Bertini L,Müller E, Gatti C, Zhang Y, Rowe M,Muhammed M 2004 Adv. Funct. Mater. 14 1189

    [14]

    Yu B L, Qi Q, Tang X F, Zhang Q J 2005 Acta Phys. Sin. 54 5763 (in Chinese) [余柏林、祁 琼、唐新峰、张清杰 2005 物理学报 54 5763]

    [15]

    Li H, Tang X F, Su X L, Zhang Q J 2009 Appl. Phys. Lett. 92 202114

    [16]

    Li H, Tang X F, Zhang Q J, Uher C 2009 Appl. Phys. Lett. 93 252109

    [17]

    Tang X F, Chen L D, Goto T, Hirai T 2000 Acta Phys.Sin. 49 2437(in Chinese) [唐新峰、陈立东、後藤孝、平井敏雄 2000 物理学报 49 2437]

    [18]

    Tang X F, Chen L D, Goto T, Hirai T 2000 Acta Phys.Sin. 49 2460(in Chinese) [唐新峰、陈立东、後藤孝、平井敏雄 2000 物理学报 49 2460]

    [19]

    Li H, Tang X F, Su X L, Zhang Q J, Uher C 2009 J.Phys.D:Appl.Phys. 42 145409

    [20]

    Li H, Tang X F, Cao W Q, Zhang Q J 2009 Chin. Phys.B 18 0287

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  • PDF下载量:  857
  • 被引次数: 0
出版历程
  • 收稿日期:  2010-01-13
  • 修回日期:  2010-03-19
  • 刊出日期:  2010-09-15

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