کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7965443 | 1514180 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of sintering process, pH and temperature on chemical durability of Ce0.5Pr0.5PO4 ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
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چکیده انگلیسی
The Ce0.5Pr0.5PO4 ceramics with high relative density of 99% and small average grain size of 0.15 μm were prepared by hot-pressing at 1150 °C for 2 h. The effects of sintering process, pH values and temperature on the chemical durability of the ceramics were investigated. The results show that normalized elemental leaching rates of Pr (LRPr) and Ce (LRCe) of the hot-pressed ceramics are slightly lower than that of the ceramics sintered at 1500 °C for 4 h by normal pressure. The LRPr and LRCe reach the highest values (â¼10â3 g mâ2 dâ1) when pH = 3, while the LRPr and LRCe have the lowest values (â¼10â7 g mâ2 dâ1) when pH = 7. The surface of the ceramic in pH = 3 leachate appears serious corrosion with plenty of pores. The precipitation of low-soluble was formed on sample surface during leaching tests at pH = 9 and 11.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 465, October 2015, Pages 550-555
Journal: Journal of Nuclear Materials - Volume 465, October 2015, Pages 550-555
نویسندگان
Jiyan Ma, Yuancheng Teng, Yi Huang, Lang Wu, Kuibao Zhang, Xiaofeng Zhao,