کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1515805 | 1511537 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solubility and diffusion of H in ordered (L12) and disordered Pd3Mn
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Solubility and diffusion of H in ordered (L12) and disordered Pd3Mn Solubility and diffusion of H in ordered (L12) and disordered Pd3Mn](/preview/png/1515805.png)
چکیده انگلیسی
Hydrogen isotherms have been measured from 423 to 573Â K for the disordered and L12 ordered forms of Pd3Mn and, from these equilibrium isotherms, ÎHH and ÎSH have been determined over a range of r values where r=H-to-metal, atom ratio. ÎHH values are significantly more negative for the L12 ordered form than for the disordered form. H diffusion constants have been determined for the L12 and disordered forms of Pd3Mn from gas phase H permeation measurements through Pd3Mn membranes (423-573Â K). The activation energy for diffusion of H in the L12 form is 35.2Â kJ/mol H which is more reasonable than the value of 76.3Â kJ/mol H previously reported. The diffusion constant is greater for the disordered than for the L12 form.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 75, Issue 5, May 2014, Pages 651-655
Journal: Journal of Physics and Chemistry of Solids - Volume 75, Issue 5, May 2014, Pages 651-655
نویسندگان
Ted B. Flanagan, D. Wang,