کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9804231 | 1516480 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase relation and bulk thermal expansion studies in thoria-neodia system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The synthesis, characterization and bulk thermal expansion studies of a series of compounds with the general composition Th1âxNdxO2âx/2 (0 ⤠x ⤠1) are reported. The XRD pattern of each product was refined to know the solid solubility limit and the homogeneity range. The solid solubility limit of NdO1.5 in ThO2 lattice, under the conditions of slow cooling from 1673 K, is represented as Th0.50Nd0.50O1.75 (i.e., 50 mol.% of NdO1.5). The subsequent compositions were found to be bi-phasic as Nd2O3 peaks started appearing. The bulk thermal expansion measurements from 293 to 1123 K, as investigated by a dilatometer, revealed that the αl value, within the homogeneity range, increases with increasing Nd3+ content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 386, Issues 1â2, 11 January 2005, Pages 234-237
Journal: Journal of Alloys and Compounds - Volume 386, Issues 1â2, 11 January 2005, Pages 234-237
نویسندگان
M.D. Mathews, B.R. Ambekar, A.K. Tyagi,