کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1313588 | 1499313 | 2016 | 7 صفحه PDF | دانلود رایگان |
• BaF2-CeF3 system was studied by co-precipitation from aqueous nitrate solutions.
• Fluorite-type Ba1-xCexF2+x (х = 0.32–0.58) was precipitated by HF.
• Tysonite-type Ce1-yBayF3-y (y = 0–0.20) was precipitated by HF and NH4F.
• Composition of the precipitates depends on the order of mixing of the reagents.
Phase formation in the BaF2-CeF3 system has been studied in the aqueous nitrate media by co-precipitation technique with the use of HF and NH4F as fluorinating agents. Formation and properties of fluorite-type Ba1-xCexF2+x (х = 0.32–0.58) and tysonite-type Ce1-yBayF3-y (y = 0–0.20) solid solutions are described in the present paper.
Phase composition in the BaF2-CeF3 system at high temperature area (upper panel, equilibrium state) and after low temperature synthesis (low panel, non-equilibrium state).Figure optionsDownload as PowerPoint slide
Journal: Journal of Fluorine Chemistry - Volume 187, July 2016, Pages 33–39