Effect of sintering temperatures on physico-mechanical properties of single-phase magnesium borate nanorods

Abstract

An optimized molar ratio of magnesia (MgO) and boric acid (H3BO3) was used to synthesize the nanorod of single-phase magnesium borate (Mg2B2O5) through a solution reaction cum sintering process. Due to their impressive mechanical strength and resistance to heat and corrosion, magnesium borates (MB) nanorods are extensively applicable as reinforcing materials. A meticulous examination was undertaken to assess the characterization and physico-mechanical properties of Mg2B2O5 (MB) nanorods during the sintering process between 700 °C and 1200 °C. Mechanical properties of synthesized MB compacts were investigated between 700 and 1200 °C. The maximum value of high temperature flexural strength (HMOR) and room temperature flexural strength (CMOR) achieved by MB compacts are 42 MPa and 53 MPa respectively. Furthermore, the compacts have a maximum compressive strength of 118 MPa and a maximum hardness of 64 HV at 1100 °C, making it promising reinforcing material for composites. © 2025 Korean Physical Society