Mechanically induced combustion synthesis and thermoelectric properties of nanostructured strontium hexaboride (SrB6)

JALALY, M, KHOSROSHAHI, BK, GOTOR, FJ, SAYAGUÉS, MJ, YAMINI, SA, FAILAMANI, F and MORI, T (2019). Mechanically induced combustion synthesis and thermoelectric properties of nanostructured strontium hexaboride (SrB6). Ceramics International, 45 (11), 14426-14431.

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Official URL: https://www.sciencedirect.com/science/article/pii/...
Link to published version:: https://doi.org/10.1016/j.ceramint.2019.04.163
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    Abstract

    The nanoparticles of strontium hexaboride (SrB 6 ) were synthesized by a mechanically induced magnesiothermic combustion in the Mg/B 2 O 3 /SrO system. Ignition time in this system was recorded to be 23 min of milling. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and high-resolution transmission electron microscopy (HRTEM) techniques were used to characterize the combustion product. Thermal analysis was employed to assess the formation mechanism. It was revealed that Mg initially reduced B 2 O 3 in a combustive manner to generate elemental boron and a large amount of heat, resulting in the reduction of SrO by Mg at high temperature. The in-situ formed elemental Sr and B react immediately to generate SrB 6 . Thermoelectric properties of consolidated SrB 6 , including thermal conductivity, Seebeck coefficient, electrical conductivity, and figure-of-merit were evaluated at the temperature range of 300–873 K.

    Item Type: Article
    Uncontrolled Keywords: 03 Chemical Sciences; 09 Engineering; 19 Studies in Creative Arts and Writing; Materials
    Identification Number: https://doi.org/10.1016/j.ceramint.2019.04.163
    Page Range: 14426-14431
    SWORD Depositor: Symplectic Elements
    Depositing User: Symplectic Elements
    Date Deposited: 01 Jul 2019 11:34
    Last Modified: 01 Jul 2019 11:34
    URI: http://shura.shu.ac.uk/id/eprint/24789

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