搜索

x
中国物理学会期刊

n型BayNixCo4-xSb12化合物的热电性能

CSTR: 32037.14.aps.51.2823

Thermoelectricpropertiesofn typeBayNixCo4-xSb1 2

CSTR: 32037.14.aps.51.2823
PDF
导出引用
  • 系统地研究了Ba填充分数及Ni含量对n型BayNixCo4-xSb12(x=0—0.1,y=0—0.4)化合物热性能及电性能的影响规律.n型BayNixCo4-xSb12的热导率随Ba填充分数的增加而显著下降,当Ba填充分数为0.3时,热导率随Ni含量的增加而降低,在x=0.05时,热导率达到最小值,晶格热导率随Ni含量的增加单调降低.电子浓度和电导率随Ba填充分数及Ni含量的增加而增加,塞贝克系数则随Ba填充分数及Ni含量的增加而减小.对于Ba0.3Ni0.05Co3.95Sb12试样,得到了1.2最大

     

    EffectsofBafillingfractionandNicontentonthethermoelectricpropertiesofn typeBayNixCo4-xSb1 2 (x =0— 0.1 ,y= 0— 0.4)wereinvestigated .ThermalconductivitydecreasedwithincreasingBafillingfractionandtemperature.Whenywasfixedat0 .3 ,thethermalconductivitydecreasedwithincreasingNicontent,andreachedaminimumvalueataboutx=0 . 0 5.LatticethermalconductivitydecreasedwithincreasingNicontent,monotonically (y≤ 0 .1 ) .Electronconcentrationandelectri calconductivityincreasedwithincreasingBafillingfractionandNicontent.SeebeckcoefficientdecreasedwithincreasingBafill ingfractionandNicontent.ThemaximumZTvalueof1 .2wasobtainedatabout90 0Kforn typeBa0 . 3 Ni0 . 0 5Co3 . 95Sb1 2

     

    目录

    /

    返回文章
    返回