کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9803201 1516463 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrogen jump motion in Laves-phase hydrides: Two frequency scales
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Hydrogen jump motion in Laves-phase hydrides: Two frequency scales
چکیده انگلیسی
Two types of hydrogen jump motion with different characteristic jump rates have been found to coexist in a number of Laves-phase hydrides. While the slower jump process is responsible for the long-range diffusion, the faster process corresponds to localized hydrogen motion over small groups of interstitial sites. In some of the Laves-phase compounds, the localized hydrogen motion is not 'frozen out' on the frequency scale of 107 to 108 s−1 down to 20 K. This paper reviews recent progress in investigations of the microscopic picture and systematics of H jump motion in Laves-phase hydrides. The relation between the hydrogen jump rates and the structure of hydrogen sublattice is emphasized.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volumes 404–406, 8 December 2005, Pages 224-229
نویسندگان
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