Phase equilibria of the ternary CaO-ZnO-SiO2 system have been investigated at 1170 °C to 1691 °C for oxide liquid in equilibrium with air and solid oxide phases: tridymite or cristobalite SiO2 (up to two immiscible liquids), pseudowollastonite (CS) CaSiO3, rankinite (C3S2) Ca3Si2O7, dicalcium silicate (C2S) (Ca, Zn)2SiO4, tricalcium silicate (C3S) (Ca, Zn)3SiO5, lime (Ca, Zn)O, zincite (Zn, Ca)O, willemite Zn2SiO4 and hardystonite (melilite) Ca2ZnSi2O7, covering the ranges of concentrations not studied before. High-temperature equilibration on primary phase (silica) or inert metal (platinum) substrates followed by quenching and direct measurement of the Ca, Zn and Si concentrations in the phases with the electron probe X-ray microanalysis (EPMA) has been used to accurately characterize the system. Liquidus phase equilibrium data of the present authors for the CaO-ZnO-SiO2 system are essential to obtain a self-consistent set of parameters of thermodynamic models for all phases.

中文翻译：

---

三元CaO-ZnO-SiO2体系的液相线实验研究

已经研究了三元 CaO-ZnO-SiO2 系统在 1170 °C 至 1691 °C 下与空气和固体氧化物相平衡的氧化物液体的相平衡：鳞石英或方英石 SiO2（最多两种不混溶液体）、假硅灰石 (CS) CaSiO3、rankinite (C3S2) Ca3Si2O7、硅酸二钙 (C2S) (Ca, Zn)2SiO4、硅酸三钙 (C3S) (Ca, Zn)3SiO5、石灰 (Ca, Zn)O、红锌矿 (Zn, Ca)O、硅锌矿 Zn2SiO4和硬石（黄长石）Ca2ZnSi2O7，涵盖了以前未研究过的浓度范围。在初级相（二氧化硅）或惰性金属（铂）基材上进行高温平衡，然后淬火并使用电子探针 X 射线微量分析 (EPMA) 直接测量相中的 Ca、Zn 和 Si 浓度已被用于准确表征系统。