کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1525325 995354 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solid state amorphization transformation in the mechanically alloyed Fe27.9Nb2.2B69.9 powders
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Solid state amorphization transformation in the mechanically alloyed Fe27.9Nb2.2B69.9 powders
چکیده انگلیسی

Mössbauer spectrometry and Rietveld analysis of X-ray diffraction patterns were used to follow the solid state amorphization transformation during the milling process of the Fe27.9Nb2.2B69.9 powders. The reaction between elemental Fe, Nb and B powders leads to the formation of the Nb(B) and Fe(B) solid solutions after 1 and 10 h of milling, respectively. A mixture of α-Fe, Nb(B) and highly disordered Fe(Nb, B) solid solution is found after 25 h of milling. An amorphous structure is obtained on further milling time (100 h). From the Mössbauer spectrometry results, it is observed that the total mixing of the elemental powders, at the atomic level, is achieved after 50 h of milling and a stationary state corresponding to a full paramagnetic amorphous phase is reached after 100 h of milling. The amorphization process can be described by an Avrami parameter close to n = 1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 122, Issue 1, 1 July 2010, Pages 35–40
نویسندگان
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