Abstract Glasses and glass-ceramics based on SiO2 have attracted a large attention. In this work, the thermal properties and crystallization kinetics of Si–Al–Zn–K–Ti glasses are investigated. Based on the thermal parameters derived from the differential scanning calorimetry technique ran upon various heating rates, the characteristic glass transition temperature, onset crystallization temperature and crystallization temperature were extracted. The crystallization peaks are carefully investigated by Kissinger, Ozawa and modified-Kissinger methods. Avrami index and the dimensionality of the crystal growth vary from 2 to 4 at the same time that crystallization activation energy decrease from 177.80 kJ/mol to 145.40 kJ/mol in Ozawa method and the thermal stability reaches to 177.20 ΔC° by doping with 0.5 wt% of CeO2 and 0.5 wt% of Eu2O3, both in excess. Our results confirm the role of rare earth ions in the crystallization kinetics, as well as improvement in the glass thermal stability.

中文翻译：

---

CeO2和Eu2O3对Si-Al-Zn-K-Ti氧化物玻璃量热行为的影响

摘要 基于SiO2 的玻璃和微晶玻璃引起了广泛的关注。在这项工作中，研究了 Si-Al-Zn-K-Ti 玻璃的热性能和结晶动力学。基于差示扫描量热技术在不同加热速率下得到的热参数，提取特征玻璃化转变温度、起始结晶温度和结晶温度。通过 Kissinger、Ozawa 和改良的 Kissinger 方法仔细研究了结晶峰。Avrami 指数和晶体生长的维数从 2 到 4 变化，同时小泽法的结晶活化能从 177.80 kJ/mol 降低到 145.40 kJ/mol，通过掺杂 0.5 wt% 的热稳定性达到 177.20 ΔC° % CeO2 和 0.5 wt% Eu2O3，两者都过量。我们的结果证实了稀土离子在结晶动力学中的作用，以及玻璃热稳定性的改善。