10208

بررسي انواع و نحوه عملكرد نانومواد جاذب امواج الكترومغناطيس

1400

دكتر حسين بنا متجدد امروز

دكتر حسين بنا متجدد امروز

Millions of dollars are paid annually to import electromagnetic absorbers to make rooms and non-reflective coatings. Likewise, electromagnetic coatings, by reflecting or absorbing electromagnetic waves and reducing their passage through the coating are significant areas. The negative impact of waves emitted by electronic devices on living tissues makes the subject necessary to cover more than before. Electromagnetic waves cover a wide range from radio waves to gamma rays and cosmic rays. The electromagnetic spectrum for any object, is a sign of the scattering of electromagnetic rays absorbed or generated by an object, and depending on their frequency are called by different names. Radars detect objects by emitting electromagnetic waves and receiving bounced off waves, which in turn the absorption of these waves is important. Electromagnetic waves are applied variously in the telecommunications industry (fiber optics, waveguides, satellites, etc.), military industries (radar, bombs, missile trackers, etc.), medicine (photography, radiology, sonography, X-ray and gamma in medical physics, ...), industries (laser cutting, magnetic train and chair, etc.) and in astronomy (studying the structure of celestial bodies, etc.). Today, the construction of surfaces to deal with harmful waves caused by mobile phones and other sources of production of harmful waves for humans, isolation of research laboratories against undesirable waves and also prevention of disruption in experiments, aircraft coverage, etc. are among the applications of these absorbers. In the field of textiles, the UV-resistant nano-coating created on textiles like curtains prevents ultraviolet light from entering the indoor space, prevents damage to the skin and eyes, and prevents the color of the textiles from turning white. Zinc oxide and titanium dioxide are some of the nanomaterials used to make such textiles. Zinc nanoxide provides effective photocatalytic properties upon exposure to light and is used as an antimicrobial and self-cleaning property in textiles. Textiles containing metal nanostructures are also considered as a protective coating against electromagnetic waves. With the increasing interest of industry in the use of nano, of course, in this seminar special effort has been made to interpret, the types and performances of nanomaterials absorbing electromagnetic waves and some related fields will be discussed.

11/22/2021 12:00:00 AM

73341

1400/09/21

Investigation of the approach and types of nanomaterials absorbing electromagnetic waves

#نانومواد #الكترومغناطيس #نانومواد_جاذب #امواج_الكترومغناطيس #عملكرد_نانومواد #نانومواد_جاذب_امواج_الكترومغناطيس

#Investigation of the approach and types of nanomaterials absorbing electromagnetic waves #nanomaterials #electromagnetic #electromagnetic waves