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Experimental study of the phase relationships in the SrO-SiO2 system
Journal of the European Ceramic Society ( IF 5.7 ) Pub Date : 2018-03-20 , DOI: 10.1016/j.jeurceramsoc.2018.03.030
Silvia Tomé-Torquemada , Björn Glaser , Du Sichen

The phase relationships in the SiO2-SrO system were determined experimentally using the quenching technique in the temperature range between 1573 K (1300 °C) and 1898 K (1625 °C). The phases in the quenched samples were examined and identified using light optical microscopy (LOM), scanning electron microscope (SEM) and energy dispersive x-ray spectroscopy (EDS). The presence of solid phases and their nature were further confirmed using X-ray Diffraction (XRD). Based on the experimental results, the phase diagram was constructed. The phase diagram shows a congruent melting of the SrSiO3 at 1840 K (1567 °C). The eutectic between the SrSiO3, SiO2 and liquid happens at 1608 K (1335 °C) and 67 mol% SiO2 and the eutectic between the SrSiO3, Sr2SiO4 and liquid at 1835 K (1562 °C) and 46.5 mol% SiO2.



中文翻译:

SrO-SiO 2体系中相关系的实验研究

使用淬火技术在1573 K(1300°C)和1898 K(1625°C)之间的温度范围内通过实验确定了SiO 2 -SrO系统中的相关系。使用光学显微镜(LOM),扫描电子显微镜(SEM)和能量色散X射线光谱(EDS)检查并鉴定了淬灭样品中的相。使用X射线衍射(XRD)进一步证实了固相的存在及其性质。根据实验结果,构建了相图。相图显示了SrSiO 3在1840 K(1567°C)下的完全熔化。SrSiO 3,SiO 2和液体之间的共晶发生在1608 K(1335°C)和67 mol%SiO 2上SrSiO 3,Sr 2 SiO 4与液体在1835 K(1562°C)和46.5 mol%SiO 2的共晶状态。

更新日期:2018-03-20
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