نوع مقاله : مقاله پژوهشی

نویسندگان

1 پژوهشکده‌ی مواد و سوخت هسته‌ای، پژوهشگاه علوم و فنون هسته‌ای، سازمان انرژی اتمی ایران

2 دانشکده‌ی مهندسی انرژی و فیزیک، دانشگاه صنعتی امیرکبیر

چکیده

در این پژوهش، ماده ابررسانای سرامیکی پایه- بیسموت (BSCCO) به روش رسوب الکتروشیمیایی تهیه، و خواص آن مطالعه شده ­است. الکترولیت مورد استفاده بر پایه­‌ی ترکیبات نیترات بیسموت [Bi(NO3)3]، نیترات مس [Cu(NO3)2]، نیترات کلسیم [Ca(NO3)2] و نیترات استرانسیم [Sr(NO3)2] در حلال دی‌­متیل­­‌سولفواکسید [DMSO, (CH3)2SO]
  است.  [CH3)2SO , DMSO] از آند مسی (Cu) و کاتد نقره­ای (Ag) برای تهیه‌­ی رسوب الکتروشیمیایی استفاده­ شده ­است. در شرایط اختلاف پتانسیل 5V و دمای 0C   55، بهینه پتانسیل و دما برای تولید رسوب ماده‌­ی ابررسانا مشاهده شد. طیف پراش پرتو- ایکس (XRD)، وجود فاز 2212-BSCCO را در نمونه تأیید کرد. این نمونه، یک ساختار
نانو- برگ­شکل با دمای گذار (Tc) 85 K  را نشان می‌­دهد.

کلیدواژه‌ها

عنوان مقاله [English]

Optimization of Electrodeposition Parameters for Preparation of Bismuth-Based Superconductor

نویسندگان [English]

  • H Adelkhani 1
  • M Ahmadi 2
  • H Araghi 2

چکیده [English]

In this paper, BSCCO bismuth-based superconductor material is prepared by the electrodeposition method. The electrolyte compositions are based on bismuth nitrate [Bi(NO3)3] copper nitrate [Cu (NO3)2], calcium nitrate [Ca(NO3)2], strontium nitrate [Sr(NO3)2] and DMSO [(CH3)2SO] as the solvents. The properties of BSCCO are studied by X-ray diffraction (XRD) and scanning electron microscope (SEM). In the electrodeposition method, copper (Cu) and silver (Ag) are used as the anode and cathode, respectively. The optimal efficiency for electrodeposition of a superconductor material is observed at voltage: 5V and temperature: 55˚C. BSCCO-2212 phase in the electrodeposited sample is confirmed by XRD. The sample shows nano-leaf morphology, with a transition temperature (Tc) is 85 K.

کلیدواژه‌ها [English]

  • Bismuth-Based Superconductor
  • Electrodeposition
  • Crystal Structure
  • Morphology
  • Transition Temperature
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