کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10626492 | 989686 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lattice thermal expansion studies on single-phase compositions in CeO2-ThO2-ZrO2 system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Earlier we reported the phase relations in the CeO2-ThO2-ZrO2 system under slow cooled conditions from 1400 °C; ceria was used as a surrogate material for plutonia. A number of single-phase compositions with fluorite-type structure were identified in this pseudo-ternary system. For example, about 5 and 20 mol% of zirconia could be dissolved in the lattice of thoria and ceria, respectively. 10 mol% zirconia was incorporated in the lattice of Th0.5Ce0.5O2. The lattice thermal expansion behaviour of a number of single-phase compositions in the temperature range from 293 to 1473 K, as investigated by high temperature XRD, are reported. For example, the average lattice thermal expansion coefficient of pure thoria was found to be 9.58 à 10â6, which increased to 11.91 à 10â6 Kâ1 in the composition Th0.05Ce0.90Zr0.05O2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 31, Issue 6, 2005, Pages 769-772
Journal: Ceramics International - Volume 31, Issue 6, 2005, Pages 769-772
نویسندگان
V. Grover, A.K. Tyagi,