{"title":"1100 °C 时 CaO-SiO2-Nb2O5-5 wt.% Fe2O3-TiO2 体系的等温相图","authors":"Zhengyue Liu, Lifeng Sun, Xu Pan, Maofa Jiang","doi":"10.1007/s11669-024-01138-3","DOIUrl":null,"url":null,"abstract":"<div><p>The phase diagram of the CaO-SiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> slag system has important significance for guiding the recycling and utilization processes of metallurgical slags containing niobium and titanium. In this paper, high-temperature equilibrium experiments were conducted at 1100 °C in air atmosphere to investigate the phase equilibria of the CaO-SiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> slag system. According to the experimental results, the liquidus surfaces of the liquid + CaTiO<sub>3</sub> and liquid + SiO<sub>2</sub> equilibrium coexistence regions in the CaO-SiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-5wt.% Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> system at 1100 °C in air atmosphere were determined using interpolation and function fitting methods. Finally, the 1100 °C isothermal phase diagrams of the CaO-SiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-5 wt.% Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> system were plotted. The composition range of liquid phase region was determined, and the positional relationships of the seven other equilibrium coexistence regions were illustrated.</p></div>","PeriodicalId":657,"journal":{"name":"Journal of Phase Equilibria and Diffusion","volume":"45 5","pages":"849 - 862"},"PeriodicalIF":1.5000,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Isothermal Phase Diagram of CaO-SiO2-Nb2O5-5 wt.% Fe2O3-TiO2 System at 1100 °C\",\"authors\":\"Zhengyue Liu, Lifeng Sun, Xu Pan, Maofa Jiang\",\"doi\":\"10.1007/s11669-024-01138-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The phase diagram of the CaO-SiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> slag system has important significance for guiding the recycling and utilization processes of metallurgical slags containing niobium and titanium. In this paper, high-temperature equilibrium experiments were conducted at 1100 °C in air atmosphere to investigate the phase equilibria of the CaO-SiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> slag system. According to the experimental results, the liquidus surfaces of the liquid + CaTiO<sub>3</sub> and liquid + SiO<sub>2</sub> equilibrium coexistence regions in the CaO-SiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-5wt.% Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> system at 1100 °C in air atmosphere were determined using interpolation and function fitting methods. Finally, the 1100 °C isothermal phase diagrams of the CaO-SiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-5 wt.% Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> system were plotted. The composition range of liquid phase region was determined, and the positional relationships of the seven other equilibrium coexistence regions were illustrated.</p></div>\",\"PeriodicalId\":657,\"journal\":{\"name\":\"Journal of Phase Equilibria and Diffusion\",\"volume\":\"45 5\",\"pages\":\"849 - 862\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-09-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Phase Equilibria and Diffusion\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11669-024-01138-3\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Phase Equilibria and Diffusion","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11669-024-01138-3","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Isothermal Phase Diagram of CaO-SiO2-Nb2O5-5 wt.% Fe2O3-TiO2 System at 1100 °C
The phase diagram of the CaO-SiO2-Nb2O5-Fe2O3-TiO2 slag system has important significance for guiding the recycling and utilization processes of metallurgical slags containing niobium and titanium. In this paper, high-temperature equilibrium experiments were conducted at 1100 °C in air atmosphere to investigate the phase equilibria of the CaO-SiO2-Nb2O5-Fe2O3-TiO2 slag system. According to the experimental results, the liquidus surfaces of the liquid + CaTiO3 and liquid + SiO2 equilibrium coexistence regions in the CaO-SiO2-Nb2O5-5wt.% Fe2O3-TiO2 system at 1100 °C in air atmosphere were determined using interpolation and function fitting methods. Finally, the 1100 °C isothermal phase diagrams of the CaO-SiO2-Nb2O5-5 wt.% Fe2O3-TiO2 system were plotted. The composition range of liquid phase region was determined, and the positional relationships of the seven other equilibrium coexistence regions were illustrated.
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The most trusted journal for phase equilibria and thermodynamic research, ASM International''s Journal of Phase Equilibria and Diffusion features critical phase diagram evaluations on scientifically and industrially important alloy systems, authored by international experts.
The Journal of Phase Equilibria and Diffusion is critically reviewed and contains basic and applied research results, a survey of current literature and other pertinent articles. The journal covers the significance of diagrams as well as new research techniques, equipment, data evaluation, nomenclature, presentation and other aspects of phase diagram preparation and use.
Content includes information on phenomena such as kinetic control of equilibrium, coherency effects, impurity effects, and thermodynamic and crystallographic characteristics. The journal updates systems previously published in the Bulletin of Alloy Phase Diagrams as new data are discovered.
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