Abstract The temperature dependent behaviour of a complex aluminosilicate glass (SiO2-Al2O3-ZnO-Na2O system), which is a reference for ceramic glaze technology, has been determined, by combining techniques that cover a scale ranging from atomistic to macroscopic. The system shows a linear thermal expansion up to about 600 °C. The glass transition temperature is at 620 °C, as observed from Differential Scanning Calorimetry. Ex situ synchrotron diffraction experiments found a further transformation consisting of albite crystallization above 810 °C. This reaction is very slow and induces permanent structural modifications in the material at both intermediate and short ranges, as shown by in situ synchrotron diffraction experiments. These observations explain why ceramic glaze technology still faces challenges for large scale manufacturing and show the critical thermal range where interventions should be focussed. Eventually, melting takes place at 1190 °C, from hot stage microscopy.

中文翻译：

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用于陶瓷釉料的 SiO 2 -Al 2 O 3 -ZnO-Na 2 O 玻璃的高温研究：原位/异位同步加速器衍射和常规方法

摘要 复合铝硅酸盐玻璃（SiO2-Al2O3-ZnO-Na2O 系统）的温度依赖性行为是陶瓷釉技术的参考，通过结合涵盖从原子到宏观范围的技术，已经确定。该系统显示出高达约 600 °C 的线性热膨胀。从差示扫描量热法观察到的玻璃化转变温度为 620 °C。异位同步加速器衍射实验发现了进一步的转变，包括在 810 °C 以上的钠长石结晶。如原位同步加速器衍射实验所示，该反应非常缓慢，并且会在中程和短程中引起材料的永久性结构改变。这些观察结果解释了为什么陶瓷釉料技术在大规模制造方面仍然面临挑战，并显示了应重点干预的临界热范围。最终，熔化发生在 1190 °C，来自热台显微镜。