p型方钴矿热电材料纳米-介观尺度微结构调控

刘志愿, 王永贵, 赵成玉, 杨婷, 夏爱林

Nano-Mesoscopic Scale Microstructure Regulation for p-Type Skutterudite Thermoelectric Materials

LIU Zhiyuan, WANG Yonggui, ZHAO Chengyu, YANG Ting, XIA Ailin

图2 具有低维纳米结构的p型方钴矿材料La0.5Ce0.5Fe3CoSb12样品的SEM像[40],p型填充方钴矿Ce0.45Nd0.45Fe3.5Co0.5Sb12粉体经球磨5 h后的SEM像[25],通过传统固相反应和熔融旋甩法制备的Nd0.9Fe3CoSb12样品的SEM像[41],La x Ti0.1Ga0.1Fe3CoSb12样品甩带自由面的SEM像及La x Ti0.1Ga0.1Fe3CoSb12熔融旋甩样品和退火样品的热电优值(ZT值)[60]

Fig.2 p-type skutterudite materials with low-dimensional nanostructure (a) SEM image of the La0.5Ce0.5Fe3CoSb12 sample[40] (b) SEM image of p-type filled skutterudite Ce0.45Nd0.45Fe3.5Co0.5Sb12 powder after ball milling for 5 h[25] (c, d) SEM images of Nd0.9Fe3CoSb12 samples prepared by traditional solid-state reaction (c) and MS method (d)[41] (e) SEM image of the free side of spun ribbon of La x Ti0.1Ga0.1Fe3CoSb12 sample[60] (f) thermoelectric figure of merit(ZT) values of La x Ti0.1Ga0.1Fe3CoSb12 sample prepared by MS and annealing sample (T—temperature)[60]