Influence of B2O3 doping on synthesis of MgTiO3 ceramics from recycled magnesia-hercynite materials

Abstract Herein, magnesium metatitanate (MgTiO 3 ) ceramics were synthesised using recycled magnesia-hercynite (MH) bricks as the raw materials to achieve solid waste reusing of cement kiln refractories. The MH mixed with anatase TiO 2 investigate effect addition doped B O during synthesis MgTiO at 1400 °C. Phase compositions and microstructural studies performed x-ray diffraction (XRD) scanning electron microscope (SEM), respectively. In addition, energy-dispersive spectroscopy (EDS) was conducted dielectric properties samples studied. Results show that can promote sintering, improve shrinkage, densification, stabilise lattice, inhibit formation . presence appropriate amount accelerate material diffusion result in grain growth through intercrystalline liquid phase. also suggest an increase constant results a decrease loss. It concluded wt% optimum required obtain most favourable rate (98.2%). exhibited maximum density 3.69 g·cm −3 excellent microwave ε r = 18.28 tan δ 0.086.