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Temperature stability of AgCu nanoparticles

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    0462329 - ÚFM 2017 RIV NL eng J - Journal Article
    Sopoušek, J. - Zobač, O. - Vykoukal, V. - Buršík, Jiří - Roupcová, Pavla - Brož, P. - Pinkas, J. - Vřešťál, J.
    Temperature stability of AgCu nanoparticles.
    Journal of Nanoparticle Research. Roč. 17, č. 12 (2015), s. 1-7. ISSN 1388-0764. E-ISSN 1572-896X
    Institutional support: RVO:68081723
    Keywords : sintering * microscopy * organometallics
    Subject RIV: JG - Metallurgy
    Impact factor: 2.101, year: 2015

    The colloidal solutions of the Ag–Cu nanoparticles (NPs, 10–32 nm) were prepared by solvothermal reactions. The samples of dried AgCu NPs and the resulting microstructures after heat treatment in air were investigated by various methods including electron microscopy (TEM, SEM) and high-temperature X-ray powder diffraction (HTXRD). The AgCu randomly mixed, Cu-rich, and Ag-rich face centred cubic crystal lattices were detected during the experiments. The temperature induced sintering was observed experimentally by HTXRD at 250 °C. The phase transformations at high temperatures were monitored by differential scanning calorimetry. The formation of the Ag-rich grains during heating in air and evolution of copper oxide microstructure were detected.
    Permanent Link: http://hdl.handle.net/11104/0261910

     
     
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