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مطالعۀ ریزساختار و خواص مغناطیسی آلیاژ آمورف Fe-Si-B-Cu با جایگزینی جزئی C به جای B | ||
| فصلنامه علمی اپتوالکترونیک | ||
| دوره 4، شماره 2 - شماره پیاپی 11، شهریور 1401، صفحه 37-48 اصل مقاله (742.83 K) | ||
| نوع مقاله: پژوهشی | ||
| شناسه دیجیتال (DOI): 10.30473/jphys.2022.66115.1128 | ||
| نویسندگان | ||
| ناهید محمدی پارسا؛ صفدر حبیبی* | ||
| گروه فیزیک، دانشگاه بوعلی سینا، همدان، ایران | ||
| چکیده | ||
| در تحقیق حاضر تأثیر جایگزینی مقدار جزئی کربن به جای بور بر روی ریزساختار، خواص مغناطیسی و برهمکنش‌های فوق‌ریز شیشه فلزی Fe–Si–B–Cu بررسی شد. به این منظور نمونه‌های نواری با ترکیبات Fe83.3Si4B12Cu0.7 و Fe83.3Si4B11Cu0.7C1 با استفاده از تکنیک مذاب‌ریسی تهیه شد. سپس آزمون‌های تجربی پراش پرتو ایکس، گرماسنجی روبشی تفاضلی، آنالیز حرارتی افتراقی مغناطیسی، میکروسکوپ الکترونی روبشی، اسپکتروسکوپی موزبائر و مغناطیس‌سنج نمونه ارتعاشی برای مطالعه ویژگی‌های مختلف نمونه‌ها به کار گرفته شد. بررسی‌ها نشان داد که نمونه‌ها کاملاً ساختار آمورف دارند و نمونه حاوی کربن بازه دمایی عملیات حرارتی بزرگتری نسبت به نمونه فاقد کربن نشان داد. اگرچه جایگزینی مقدار جزئی کربن تأثیر ناچیزی بر روی مقادیر متوسط میدان‌های مغناطیسی فوق‌ریز و نظم کوتاه‌برد شیمیایی داشت، اما تغییراتی در نظم کوتاه‌برد توپولوژیکی ایجاد کرد. مقدار مغناطش اشباع با افزودن کربن تغییری نکرد، با این حال مقدار میدان وادارندگی در حالت میدان مغناطیسی خارجی عمود، به طرز محسوسی کاهش یافت. | ||
| کلیدواژه‌ها | ||
| آلیاژ آمورف؛ خواص مغناطیسی؛ برهمکنش‌های فوق‌ریز؛ ریزساختار؛ اسپکتروسکوپی موزبائر | ||
| عنوان مقاله [English] | ||
| Study of microstructure and magnetic properties of Fe-Si-B-Cu amorphous alloy with partial substitution of C for B | ||
| نویسندگان [English] | ||
| Nahid Mohammadiparsa؛ Safdar Habibi | ||
| Department of Physics, Bu-ali Sina University, Hamedan, Iran | ||
| چکیده [English] | ||
| Impact of minor substitution of carbon on microstructure, magnetic properties and hyperfine interactions of Fe–Si–B–Cu-type metallic glasses was investigated. For this purpose, samples of Fe83.3Si4B12Cu0.7 and Fe83.3Si4B11Cu0.7C1 compositions were prepared using melt spinning technique. Then, to study different characteristics of samples, X-ray diffraction, differential scanning calorimetry, magnetic thermogravimetry, scanning electron microscopy, Mӧssbauer spectrometry, and magnetic measurements were applied. Fully amorphicity of the samples and a larger heat treatment temperature range of the C-containing sample was found. Though minor carbon introduction had negligible effect upon average values of hyperfine magnetic fields and chemical short-range order, structural deviation in topological short-range order was unveiled. No change was observed in saturation magnetization, however, the amount of coercive field in the case of perpendicular external magnetic field decreased significantly. | ||
| کلیدواژه‌ها [English] | ||
| Amorphous Alloy, Magnetic Properties, Hyperfine Interactions, Microstructure, Mӧssbauer Spectroscopy | ||
| مراجع | ||
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