کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7966582 | 1514187 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization and phase stability of pyrochlore (Nd1âxCex)2Zr2O7+y (x = 0-1)
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Characterization and phase stability of pyrochlore (Nd1âxCex)2Zr2O7+y (x = 0-1) Characterization and phase stability of pyrochlore (Nd1âxCex)2Zr2O7+y (x = 0-1)](/preview/png/7966582.png)
چکیده انگلیسی
Powders of (Nd1âxCex)2Zr2O7+y (x = 0-1) with pyrochlore structure were prepared by sol-spray pyrolysis and subsequent graphite reduction at 1200 °C. The effects of cerium content on crystal structure, phase stability and microstructure of the (Nd1âxCex)2Zr2O7+y (x = 0-1) inert matrix materials were studied. XRD and Raman results presented that all samples were in a single pyrochlore phase. XPS results indicated the cerium was in a single oxidation state of +4. After sintering at 1500 °C for 24 h in air, the sample of x = 1 underwent a phase segregation to Zr1âxCexO2 solid solutions of tetragonal, metastable tetragonal and cubic phases, the sample of x = 0.9 contained a few tetragonal phase in addition to fluorite phase, the samples of x = 0.5-0.8 had a single phase fluorite structure, the samples of x = 0-0.4 maintained the pyrochlore structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 458, March 2015, Pages 156-161
Journal: Journal of Nuclear Materials - Volume 458, March 2015, Pages 156-161
نویسندگان
Xin Wang, Kuo Jiang, Liang Zhou,