طراحی، پردازش و ارزیابی پوشش نانو لانتانیم آلومیناتLaAlO3 و جذب امواج الکترومغناطیسی بر اساس رنگ اپوکسی با الگوریتم بهینه‌سازی تقلیدمحور (ISO)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه مهندسی شیمی، واحد اراک، دانشگاه آزاد اسلامی، اراک، ایران

2 گروه نانو فیزیک،دانشکده فیزیک، دانشگاه علوم هوایی شهید ستاری،تهران،تهران

چکیده

در این مقاله، برای طراحی و فراوری نانوپوشش‌های جاذب امواج الکترومغناطیس به بررسی عوامل مختلف در ایجاد خاصیت جذب امواج در رنگ‌های پلیمری پرداخته و موادی که در این زمینه به‌طور متداول استفاده می­شود را، شناسایی شد. در انجام این پژوهش از الگوریتم بهینه‌سازی تقلید محور(ISO) استفاده شده است. برای انجام این پژوهش، ابتدا انواع روش‌های جذب و بسامدهای راداری مورد استفاده استخراج و مشخص شد  که با استفاده از تابش میدان‌های الکترومغناطیسی خارجی بر مواد چندسازه و لحاظ کردن شرایط مرزی امواج تابشی، می‌توان ساختار متفاوتی از مواد را مشاهده کرد. در این پژوهش، نمونه‌های رنگ اپوکسی و نانوپودر لانتانیم آلومینیات به صورت کاربردی مورد پژوهش قرار گرفتند و با استفاده از دستگاه نتورک آنالیز درصد جذب این نمونه‌ اندازه‌گیری شد که برای نمونه لانتانیوم آلومینات تلفات بازتابش 8/13- دسی بل، معادل ضریب جذب 83% به­دست آمد.

کلیدواژه‌ها


عنوان مقاله [English]

Design, processing and evaluation of lanthanum aluminium (LaAl) nano coating and absorption of electromagnetic waves based on epoxy paint with imitation-based optimization algorithm (ISO)

نویسندگان [English]

  • Mohamadreza Abdolmajidi 1
  • Ali Hassani Joshaghani 1
  • Akbar Cheraghi 2
  • Hossein Mazaheri 1
1 Department of chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran
2 Department of Basic Sciences, Shahid Sattari Aeronautical University of Science and Technology, Tehran, Iran
چکیده [English]

In this paper, for the design and processing of electromagnetic wave absorbing Nano coatings, we have studied various factors in creating the property of absorbing waves in polymer paints and identified the materials that are commonly used in this field. In this research, the imitation-based optimization algorithm has been used. To conduct this research, first, the types of absorption methods and radar frequencies used were extracted and it was determined that by using external electromagnetic field radiation on composite materials and considering the boundary conditions of radiation waves, a different structure of materials can be observed. In this study, samples of epoxy paint and lanthanum aluminate (LaAlO3) Nano powder were applied and the absorption percentage of this sample was measured using a network analysis device. For lanthanum aluminate sample, the reflectance loss was -13.8 dB, equivalent to the absorption coefficient of 83%.

کلیدواژه‌ها [English]

  • Radar absorbers Materials (RAM)
  • epoxy paint
  • algorithm (ISO)
  • Nano coatings
  • electromagnetic absorption
  • lanthanum aluminate (LaAlO3)
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