Journal of Inorganic Materials, Volume. 38, Issue 7, 815(2023)

Laser-induced Self-propagating High-temperature Synthesis of Skutterudite

Lei YAO... Dongwang YANG*, Yonggao YAN and Xinfeng TANG* |Show fewer author(s)
Author Affiliations
  • State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
  • show less

    High performance thermoelectric powders or bulks can be quickly obtained by self-propagating high- temperature synthesis (SHS) or its derivative methods. In the process of preparing skutterudite by SHS technology, unsteady SHS reaction is easy to occur, which leads to impurity phase in the powders compact after reaction. In this work, the SHS process of the skutterudite was investigated via regulating the power density of the laser (η) and preheating temperature (T0) by laser induction and preheating of powders compact, respectively. The change of combustion mode for the skutterudite of CoSb3 was observed and the process window for single phase was obtained. As a result, with fixed η and increased T0, the state of the SHS process changes correspondingly, i.e., reaction stop→unsteady spiral combustion→steady-state combustion→unsteady spiral combustion. With η=3.75 J·mm-2 and 250 ℃≤T0<370 ℃, the single-phase of CoSb3 can be obtained successfully.

    Tools

    Get Citation

    Copy Citation Text

    Lei YAO, Dongwang YANG, Yonggao YAN, Xinfeng TANG. Laser-induced Self-propagating High-temperature Synthesis of Skutterudite[J]. Journal of Inorganic Materials, 2023, 38(7): 815

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Nov. 28, 2022

    Accepted: --

    Published Online: Dec. 28, 2023

    The Author Email: YANG Dongwang (ydongwang@whut.edu.cn), TANG Xinfeng (tangxf@whut.edu.cn)

    DOI:10.15541/jim20220714

    Topics