A simple method to synthesize Ba0.6Sr0.4TiO3 nano-powders through high-energy ball-milling

In this study, we fabricated Ba0.6Sr0.4TiO3 (BST) powders via a high-energy ball-milling (HEBM) method. The processing parameters were optimized to obtain an optimum synthesis condition. BST nano-powders (with a mean grain size of 475 nm) were derived from the precursor milled at 400/800 rpm for 5 h and calcined at 1000 °C for 2 h. This synthesis temperature was much lower than that required by traditional solid state reaction. It was suggested that HEBM is a simple and practical route to synthesize BST nano-powders.

Research highlights► We explored optimum processing parameters to fabricate Ba0.6Sr0.4TiO3 (BST) nano-powders via high-energy ball-milling (HEBM). ► Nano-sized BST powders (mean grain size of 475 nm) were derived from the precursor milled at 400/800 rpm for 5 h and calcined at 1000 °C for 2 h. ► This result suggested that HEBM is a practical way to synthesize BST nano-powders at relatively low temperatures.Graphical abstractThe XRD patterns illustrated the phase formation procedure of the calcined powders obtained through different coupled processes. BST nano-powders with a mean grain size of 475 nm were gained in the sample milled at 400/800 rpm for 5 h and calcined at 1000 °C for 2 h, suggesting that HEBM is a simple and practical route in preparing BST nano-powders.Figure optionsDownload full-size imageDownload as PowerPoint slide