کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1569677 | 1514267 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal diffusivity and thermal conductivity of thoria-lanthana solid solutions up to 10Â mol.% LaO1.5
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A series of thorium oxide-lanthanum oxide solid solutions has been prepared by solid-state reaction. The phase behavior of thoria doped lanthanum oxide has been ascertained by X-ray diffraction technique. A complete solid solubility of LaO1.5 up to 30Â mol.% has been observed. Thermal diffusivity of a range of thoria-lanthana solid solutions has been measured in the compositional range from pure thoria to 10Â mol.% LaO1.5 by the laser flash method covering a temperature range from 373 to 1773Â K. Thermal conductivity values have been calculated from measured diffusivity, density and specific heats of these solid solutions. An attempt has also been made to delineate a suitable mechanism for heat conduction in these solid solutions with the help of the standard phonon conduction equation for dielectric materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 353, Issues 1â2, 1 July 2006, Pages 35-41
Journal: Journal of Nuclear Materials - Volume 353, Issues 1â2, 1 July 2006, Pages 35-41
نویسندگان
Dheeraj Jain, C.G.S. Pillai, B.S. Rao, R.V. Kulkarni, E. Ramdasan, K.C. Sahoo,