کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9803683 1516471 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Desorption behaviour of hydrogen in the LaNi4.7Sn0.3-H system
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Desorption behaviour of hydrogen in the LaNi4.7Sn0.3-H system
چکیده انگلیسی
The rate of hydrogen desorption in the LaNi4.7Sn0.3-H system studied by means of the volumetric technique has been found to be controlled by H diffusion. Apparent diffusivities of H were estimated using the spherical model and showed a decrease of D on a transition from the α-solid solution to the β-hydride region (6.7 × 10−10 cm2/s for LaNi4.7Sn0.3H3.2−5.3 and 1.2 × 10−9 cm2/s for LaNi4.7Sn0.3H0.2−0.5 at 298 K). Apparent diffusivity for 3.0 < [H]/[LaNi4.7Sn0.3] < 5.5 is almost independent of H content, while for [H]/[LaNi4.7Sn0.3] < 3.0 it is pronouncedly influenced by the H/M ratio and may be dominated by the frequency factor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 396, Issues 1–2, 21 June 2005, Pages 197-201
نویسندگان
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