The effect of mechanical activation on the thermal reactions of P2O5–Al2O3–Fe2O3–Na2O phosphate glasses

• Published in: Journal of thermal analysis and calorimetry Vol. 108; no. 2; pp. 711 - 715
• Main Authors: Ciecinska, Malgorzata, Stoch, Pawel
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Dordrecht Springer Netherlands 01-05-2012; Springer
• Subjects: Analytical Chemistry; Applied sciences; Building materials. Ceramics. Glasses; Chemical industry and chemicals; Chemistry; Chemistry and Materials Science; Exact sciences and technology; Glasses; Inorganic Chemistry; Measurement Science and Instrumentation; Physical Chemistry; Polymer Sciences; Thermochemistry; Atomic interaction analysis; Na–Al–Fe phosphate glasses; Mechanochemical activation; Differential scanning calorimetry; Fourier transformation; Na-Al-Fe phosphate glasses; Thermal reaction; Phosphate glass; X ray diffraction; Mechanical activation; Mechanochemical treatment; Infrared spectrometry; Aluminium Oxides; Phosphorus Oxides; Mechanochemical synthesis; Sodium Oxides; Thermal analysis; Iron III Oxides; Alumina
• ISSN: 1388-6150; 1588-2926; 1572-8943
• DOI: 10.1007/s10973-011-1999-2

The effect of mechanical activation on the structure and thermal reactions of glasses has been studied on the example of Na–Al–Fe phosphate glasses. These glasses are used in nuclear technology for immobilization of radioactive waste. The glasses were activated by grinding in a planetary mill. Mechanical activation causes a decrease of the
T
g
temperature as well as of the glass crystallization temperature. The type of crystalline phases formed and the quantitative proportions between them are changing. Analysis of inter-atomic interactions in the structure of glass was applied to explain the observed regularities governing the crystallization of the activated glasses.