Thermal Stability Evaluation of Aluminium Oxide (Al?O?) for High-Temperature Applications

Aluminium oxide (Al₂O₃) is a common ceramic material widely recognized for its thermal stability, chemical inertness, and mechanical strength, and is therefore ideally suited for high temperature uses. Its stable α-phase allows it to resist extreme heating without changing structure, in turn supporting common applications in refractory linings, thermal barrier coatings, structural ceramics, electronic substrate applications, and catalytic supports. In this investigation, the thermal stability of aluminium oxide powder is evaluated using thermogravimetric (TG) and differential scanning calorimetry (DSC) techniques. The investigation shows that aluminium oxide remains structurally stable in high-temperature conditions (300-900 °C), and only experiences minor mass loss at low temperatures due to surface moisture and hydroxyl groups. These investigations demonstrate that aluminium oxide is suitable for challenging high-temperature and protective applications. Earlier investigations conducted by Toledo, Laboureur, Trunov, Vippola have pointed out alike thermal reliability thereby ensuring it functioned well in confirmation of thermal systems. Having elevated thermal resistance, mechanical hardness, and chemical non-reactivity, aluminium oxide is a flexible option of material for parts undergoing harsh thermal conditions.In summary, this study determines that aluminium oxide is a durable, thermally stable, and reliably performing material for high temperature systems, reinforcing its importance in ceramics, aerospace, electronics, and chemical industries where materials must perform and maintain their durabiity under extreme conditions