Purpose <p>Barium hexaferrite (BaFe₁₂O₁₉) exhibits promising magnetic properties for advanced electronic and permanent magnet applications. This study aims to investigate the influence of sintering temperature on the structural, mechanical, and magnetic properties of BaFe₁₂O₁₉ synthesized via the mechanical alloying method.</p> Methods <p>BaFe₁₂O₁₉ powders were produced by mechanically milling Fe₂O₃ and BaCO₃ precursors, followed by sintering at three different temperatures. The resulting materials were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometry (VSM), and mechanical testing to evaluate their structural and functional properties.</p> Results <p>Increasing the sintering temperature enhanced the formation of the BaFe₁₂O₁₉ phase and improved magnetic characteristics. However, it also led to increased porosity and grain coarsening, which adversely affected mechanical strength. Lower sintering temperatures resulted in better mechanical integrity but limited magnetic enhancement. The presence of residual Fe₂O₃ at lower temperatures negatively influenced the magnetic purity.</p> Conclusion <p>Sintering temperature plays a crucial role in optimizing the trade-off between magnetic and mechanical properties of BaFe₁₂O₁₉. Careful control of the sintering process following mechanical alloying is essential to achieve desired performance for electronic and magnetic applications.</p>