12 اردیبهشت 1403
حسين رعنايي

حسین رعنایی

مرتبه علمی: دانشیار
نشانی: دانشکده علوم و فناوری نانو و زیستی - گروه فیزیک
تحصیلات: دکترای تخصصی / فیزیک
تلفن: 07731223310
دانشکده: دانشکده علوم و فناوری نانو و زیستی

مشخصات پژوهش

عنوان Mössbauer study of a ball-milled Co0.40Fe0.10Zr0.10B0.40 alloy
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
Nano-structured alloys FeCoZrB alloy Mössbauer spectroscopy
مجله JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
شناسه DOI https://doi.org/10.1016/j.jmmm.2022.169560
پژوهشگران لنارت هگستروم (نفر اول) ، حسین رعنایی (نفر دوم) ، سعید کمالی (نفر سوم)

چکیده

In this study, 57Fe Mössbauer spectroscopy has been used to identify various Fe-restricted components formed in a ball-milled Co0.40Fe0.10Zr0.10B0.40 alloy for different milling times of 0 h, 8 h, 24 h, 72 h, 120 h, and 190 h. It is shown that the initial ball-milling results in formation of amorphous Fe1−𝑥Co𝑥 alloys. Further ball-milling introduces B into the neighborhood of the Fe atoms, and amorphous components with 3 and 4 B atoms as nearest-neighbors and next-nearest-neighbors are observed. Although the investigation about alloying of Fe and Zr is more difficult, it is concluded that there is no evidence of any crystalline FeZr phase. Furthermore, annealing the 190 h milled sample shows that crystalline Fe1−𝑥Co𝑥 alloys with very low x-values (x < 0.02) are formed.