Thermal performance of Bi1₂TiO₂₀ crystals: insights into stability and decomposition kinetics

Abstract This study explores the thermal and structural properties of Bi 12 TiO 20 crystals using a combination of thermogravimetric analysis (TGA), differential thermal analysis (DTA), differential scanning calorimetry (DSC), and x-ray diffraction (XRD) techniques. XRD measurements were conducted to confirm the crystalline structure and calculate the lattice parameter, while TGA and DTA were employed to evaluate the material’s thermal stability and decomposition behavior. TGA revealed two distinct weight loss regions, approximately 0.9% loss between 490 °C–650 °C and 1.1% loss between 650 °C–840 °C. A rapid weight loss beyond 840 °C, accompanied by a significant exothermic peak in the DTA curve, was attributed to the structural decomposition of the crystal. DSC analysis identified an exothermic process at approximately 343 °C. The comprehensive evaluation of structural and thermal properties in this study not only establishes Bi 12 TiO 20 as a high-performance material but also contributes to a deeper understanding of its potential for advanced technological applications.