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CaF_2-LiCl-KCl和CaF_2-NaCl-KCl体系的熔度图已有报导,而Caf_2-LiCl-NaCl体系的熔度图尚未有研究。我们用目测多温法作成了该系的熔度图。实验所用LiCl,经再结晶处理,真空脱水后预熔。CaF_2按Georg Brauer叙述的方法制成。NaCl(分析试剂)经600℃煅烧后预熔。熔点分别为606℃(1413℃)和801℃。将原料放在铂坩埚内,在坩埚炉中加热。炉上方装有光源。用铂-铂铑(10％Rh)热电偶测量熔体中晶体开始析出时的温度。体系的组成以克分子百分数表示。在组成该三元系的三个二元系中,CaF_2-LiCl系和 CaF_2-NaCl 采的熔度图已有研究。我们复验结果与之基本一致。LiCl-NaCl系的熔度图,
The melting diagram of CaF_2-LiCl-KCl and CaF_2-NaCl-KCl systems has been reported, but the melting diagram of Caf_2-LiCl-NaCl has not been studied yet. We use visual multi-temperature method to make the Department of the melting diagram. LiCl used in the experiment, after recrystallization, vacuum dehydration pre-melt. CaF_2 is made by the method described by Georg Brauer. NaCl (analytical reagent) is calcined at 600 ° C and pre-melted. The melting points were 606 ° C (1413 ° C) and 801 ° C, respectively. The material is placed in a platinum crucible and heated in a crucible furnace. Furnace with light source. The temperature at which the crystals started to precipitate in the melt was measured with a platinum-platinum rhodium (10% Rh) thermocouple. The composition of the system is expressed as a mole percent. In the three binary systems that make up the ternary system, the melting diagrams of CaF_2-LiCl and CaF_2-NaCl have been studied. Our retest results and basically the same. LiCl-NaCl system of the melting diagram,