Influence of manganese ions in calcium silicate glass–ceramics on optical, mechanical, and magnetic properties

Abstract Nanocrystalline calcium silicate powder was synthesized by adding different ratios of MnO 2 ranging from 0.00 to 2.00 wt% detect its effect on the structure and physical properties. The pseudowollastonite triclinic low combeite hexagonal phase with nanocrystallite size less than 85.0 nm were confirmed XRD technique average particle 7.8 27.9 as detected HR-TEM micrograph images. Stretching bending vibration O–Si–O band shifted higher values upon addition verified FT-IR. Increasing both density ultimate strength a reduction in porosity leads an improvement mechanical properties . Additionally, increasing content showed magnetic optical properties, which exhibited decrement gap E g 3.9 1.6 eV. Hence, acts structural network modifier glass–ceramics. Furthermore, estimated Lande g-factor (2.01534–2.01731) for d 5 system Mn 2+ displayed negative shift free electron (2.0023), hyperfine splitting constant A value 87 × 10 −4 cm −1 , indicating that ions are ionic environment.