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    • Keywords

       

      Ba𝑥Sr1–𝑥SO4 (0 4 𝑥 4 1) solid solution; nanomaterials; structural transition; aqueous solution route; surfactant-free.

    • Abstract

       

      A facile aqueous solution route has been employed to synthesize Ba𝑥Sr1–𝑥SO4 (0 4 𝑥 ≤ 1) solid solution nanocrystals at room temperature without using any surfactants or templates. The as-synthesized products were characterized by means of X-ray diffraction (XRD), X-ray fluorescence spectrometer (XRF), scanning electron microscopy (SEM), and differential scanning calorimetry–thermogravimetry (DSC–TG). The Ba𝑥Sr1–𝑥SO4 solid solution nanocrystals exhibit an orthorhombic structure and an ellipsoidal-shaped morphology with an average size of 80–100 nm. The lattice parameters of Ba𝑥Sr1–𝑥SO4 solid solution crystals increase with increasing x value. However, they are not strictly coincident with the Vegard’s law, which indicates that the as-obtained products are non-ideal solid solutions. The Ba𝑥Sr1–𝑥SO4 solid solution nanocrystals have an excellent thermal stability from ambient temperature to 1300°C with a structural transition from orthorhombic to cubic phase at about 1111°C.

    • Author Affiliations

       

      Yu-Feng Li1 Jia-Hu Ouyang1 Yu Zhou1 Xue-Song Liang1 Ji-Yong Zhong1

      1. Institute for Advanced Ceramics, Department of Materials Science, Harbin Institute of Technology, PO Box 433, Harbin 150001, PR China
    • Dates

       
  • Bulletin of Materials Science | News

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