بررسی میزان محافظت در برابر امواج الکترومغناطیس در نانو کامپوزیت اپوکسی/نانولوله‌ی کربنی تقویت‌شده‌ با ریبان‌های آلیاژ آمورف فاینمت

نوع مقاله : علمی و پژوهشی

نویسندگان

• سهیل جمالی ¹
• سمانه صاحبیان ²
• محسن حداد سبزوار ²

¹ فردوسی مشهد

² دانشگاه فردوسی مشهد

10.22067/ma.v30i2.62640

چکیده

در این پژوهش نانوکامپوزیت‌ اپوکسی/نانولوله­های کربنی تقویت‌شده با تک لایه­ای از آلیاژ آمورف فاینمت با ترکیب شیمیایی  (ساخته‌شده توسط فرآیند ذوب‌ریسی چرخشی) به منظور محافظت در برابر امواج الکترومغناطیس استفاده شده است. از آزمون پراش پرتوی ایکس به‌منظور شناسایی آمورف‌بودن ریبان‌های آلیاژ فاینمت و از آزمون ارتعاش مغناطیسی نمونه جهت بررسی میزان مغناظش نمونه‌های کامپوزیتی استفاده شد. همچنین، به‌منظور بررسی میزان محافظت نمونه‌های تهیه‌شده، از آزمایش جذب امواج الکترومغناطیس موج‌بر مستطیلی در ناحیه پرتوی ایکس (2/8 تا 4/12 گیگاهرتز) براساس استاندارد WR90 استفاده گردید. مشاهدات حاکی از آن است که میزان محافظت موثر در برابر امواج الکترومغناطیس در ناحیه پرتوی ایکس در نمونه‌های نانوکامپوزیتی با 1/0 و 5/0 درصد وزنی نانولوله کربنی تقویت‌شده با تک ریبان‌ آلیاژ آمورف فاینمت به مقادیر 15 و 20 دسی‌بل به ترتیب رسیده است.

کلیدواژه‌ها

• محافظت، امواج الکترومغناطیس
• نانوکامپوزیت
• نانولوله کربنی
• اپوکسی
• آلیاژ آمورف فاینمت

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عنوان مقاله [English]

The Study of Electromagnetic Interference Shielding of Carbon Nanotube/ Epoxy Nanocomposite Reinforced by Finemet Amorphous Alloy

نویسندگان [English]

• soheil jamali ¹
• samaneh sahebian saghi ²
• mohsen haddad sabzevar ²

¹ ferdowsi university of mashhad

² ferdowsi university

چکیده [English]

In this research, nano composites of epoxy /carbon nanotube reinforced by one layer of Finemet amorphous alloy with chemical composition of  which was fabricated by planner flow melt spinning was used to investigate the electromagnetic interference shielding. X-ray diffraction test was done to characterize the Finemet amorphous alloy. Besides, vibrating sample magnetometer test was selected to measure the amount of magnetization of nanocomposites. Shielding effectiveness of composites over the X-band (8 to 10 GHz) was carried out by rectangular waveguide based on the WR90 standard. The results showed that the shielding effectiveness at X-ray band reaches 15 and 20 dB, respectively, in samples of nanocomposite of epoxy containing 0.1 and 0.5 wt.% carbon nanotube which was reinforced by one layer of Finemet amorphous alloy.

کلیدواژه‌ها [English]

• Shielding effect
• Electromagnetic wave
• Nano Composite
• Carbon Nano Tube
• Epoxy
• Finemet amorphous alloy

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