| BaB2O4-K2O和BaB2O4-K2B2O4赝二元系相图的研究 |
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| 引用本文： | 王国富,黄清镇.BaB2O4-K2O和BaB2O4-K2B2O4赝二元系相图的研究[J].物理学报,1985,34(4):562-566. |
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| 作者姓名： | 王国富 黄清镇 |
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| 作者单位： | 中国科学院福建物质结构研究所 |
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| 摘 要： | 用X射线衍射和差热分析方法研究了BaB2O4-K2O和BaB2O4-K2B2O4赝二元系的相平衡关系。BaB2O4-K2B2O4属共晶体系,共晶温度为850±3℃,共晶点成分为45mol％K2O。在Ba
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| 收稿时间： | 1984-03-27 |
STUDIES ON PHASE EQUILIBRIUM RELATION IN PSEUDO-BINARY SYSTEMS BaB2O4-K2O AND BaB2O4-K2B2O4 |
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| WANG GUO-FU and HUANG QING-ZHEN.STUDIES ON PHASE EQUILIBRIUM RELATION IN PSEUDO-BINARY SYSTEMS BaB2O4-K2O AND BaB2O4-K2B2O4[J].Acta Physica Sinica,1985,34(4):562-566. |
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| Authors: | WANG GUO-FU and HUANG QING-ZHEN |
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| Abstract: | The pseudo-binary systems BaB2O4-K2O and BaB2O4-K2B2O4 have been studies by means of X-ray diffraction and thermal analysis. The system BaB2O4-K3B2O4 is a eutectic one with eutectic temperature at 850±3℃ and the eutectic composition of 45 mol% K2B2O4. In BaB2-K2O system there exist two new compounds. A new compound 5BaB2O4·3K2O melts congruently at 903±3℃. The BaB2O4-5BaB2O4 ·3K2O forms a eutetic system. Its eutetic reaction occurs at 813±3℃ and 25 mol% K2O. Another new compound Ba4K6B8O19 melts incongruently at 860±3℃. The Ba4K6B8O19-K2O also forms a eutectic system. Its eutectic reaction occurs at about 788±3℃ and 67.5 mol% K2O. |
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