Ultrafast and low-cost preparation of Mg-2(Si0.3Sn0.7)(1-y)Sb-y with superior thermoelectric performance by self-propagating high-temperature synthesis
Ultrafast and low-cost preparation of Mg-2(Si0.3Sn0.7)(1-y)Sb-y with superior thermoelectric performance by self-propagating high-temperature synthesis
复制标题
自蔓延高温合成超快速低成本制备具有优异热电性能的Mg-2(Si0.3Sn0.7)(1-y)Sb-y
DOI：
10.1016/j.scriptamat.2018.12.027
复制
发表时间：
2019
影响因子：
6
通讯作者：
Tang Xinfeng
中科院分区：
文献类型：
--
作者：
Zhang Qiang;Su Xianli;Yan Yonggao;Zheng Yun;Liu Wei;Tang Xinfeng
制备方法的创新无疑起着至关重要的作用，不仅在调整各种材料的性能方面，而且在促进未来的商业应用方面。本论文采用一种新型的、超快速、低成本的自蔓延高温合成方法合成了Mg_2(Si0.3Sn0.7)_1−_ySby固溶体，使这些材料的大规模制备成为可能。得到的样品具有良好的热电性能，优值系数ZT达到1.1以上，平均热电系数ZT达到0.95。由于自蔓延高温合成方法具有能源效率高、耗时短、生产规模大等优点，因此该技术在其他潜在的功能材料领域具有重要的应用价值。
The innovation of fabrication method is definitely playing a vital role, not only in tuning various material properties, but in facilitating the future commercial applications. Herein, Mg2(Si0.3Sn0.7)1−ySbysolid solutions were synthesized by a new, ultrafast and low-cost self-propagating high-temperature synthesis (SHS) method, enabling the large-scale preparation of these materials. The obtained sample exhibits decent thermoelectric performance with a figure of merit,ZT, of above 1.1 and a high averageZTof 0.95. Since SHS method shows the impressive merits of high energy-efficiency, short time-consumption, and the large-scale productivity, this technique should be greatly accentuated for the other potential functional materials.