Nanostructured Materials for Shielding Applications

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: closed (22 July 2022) | Viewed by 3570

Special Issue Editors


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Guest Editor
1. Department of physics, Faculty of Science, Isra University, Amman, Jordan
2. Department of Nuclear Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman bin Faisal University (IAU), P.O. Box 1982, Dammam 31441, Saudi Arabia
Interests: radiation shielding; glasses; ceramics; nanomaterials; computer simulation; polymer with nanoparticles; concrete doped with nanoparticles
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Guest Editor
1. Laboratory of Single Crystal Growth, South Ural State University, 454080 Chelyabinsk, Russia
2. Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus, 220072 Minsk, Belarus
Interests: electrochemical analysis; material characterization; nanomaterials; electrodeposition; materials; nanomaterials synthesis; self-assembled monolayers; nanostructured materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We kindly invite you to submit your paper to this Special Issue on “Nanostructured Materials for Shielding Applications” in Nanomaterials. Radiation shielding tools have increasingly become more important in modern society due to the vast spread of radioactive sources in various fields of work. Workers and patients who come in contact with radiation for long periods of time are at risk of exposure to nuclear radiation, which could severally impact their health. Therefore, it is necessary to protect these people from the risks of the radiation. Additionally, radiation exposure from outer space impacts is very harmful to on-board spacecraft equipment. Ionizing radiation causes the failure of high-precision and expensive equipment, which can ultimately lead to failures and loss of communication with spacecraft. In this regard, it is relevant not only to develop circuitry solutions, but also to create new materials that could be used as radiation shields against electrons, protons, gamma radiation, and high-energy charged particles.

In terms of radiation shielding performance, nanoparticles (NPs) are more effective than larger microparticles due to the greater surface area to volume ratio achieved by the NPs, which results in greater attenuation. Electrodeposited and composite materials, due to the possibility of density variation by synthesis condition optimization, also attract researchers’ attention. There is currently very limited knowledge regarding the effect of incorporating nanoparticles into different types of composites. Thus, more research is needed to understand the effects of synthesis conditions and NP content and size on the morphological, structural, mechanical, optical, and radiation shielding properties of the materials to be developed as novel protection materials. We hope that your contribution to our Special Issue helps us to develop new technologies and make our world better.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following: the development and investigation of perspective functional nanomaterials for the radiation protection of biological objects and electronic components.

We look forward to receiving your contributions.

Dr. M.I. Sayyed
Dr. Daria Tishkevich
Guest Editors

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Keywords

  • Composites for radiation shielding
  • Films and coatings for radiation shielding
  • Ceramics for radiation protection
  • Radiation shielding characteristics
  • Ionizing radiation shielding
  • Electromagnetic shielding
  • Crystal structure and microstructure
  • Computer simulation

Published Papers (2 papers)

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Research

12 pages, 7403 KiB  
Article
Effect of Post-Deposition Annealing on the Structural Evolution and Optoelectronic Properties of In2O3:H Thin Films
by Liangge Xu, Jinye Yang, Kun Li, Lei Yang and Jiaqi Zhu
Nanomaterials 2022, 12(19), 3533; https://doi.org/10.3390/nano12193533 - 09 Oct 2022
Cited by 2 | Viewed by 1341
Abstract
An infrared transparent conductive material is a solution to realize the shielding function of infrared windows against electromagnetic waves, by combining the two characteristics of high transmission and conductivity in infrared wavelengths. Indium-hydroxide-doped (In2O3:H) thin films were prepared by [...] Read more.
An infrared transparent conductive material is a solution to realize the shielding function of infrared windows against electromagnetic waves, by combining the two characteristics of high transmission and conductivity in infrared wavelengths. Indium-hydroxide-doped (In2O3:H) thin films were prepared by atomic layer deposition method, which can achieve high IR transmission by reducing the carrier concentration on the basis of ensuring the electrical properties. On this basis, the effect of the post-deposition annealing process on the microstructure evolution and optoelectronic properties of In2O3:H thin films was investigated in this paper. It is demonstrated that the carrier mobility after annealing is up to 90 cm2/(V·s), and the transmittance at the 4 μm is about 70%, meanwhile, the carrier concentration after annealing in air atmosphere is reduced to 1019 cm−3, with a transmission rate of up to 83% at 4 μm. The simulations visualize the shielding performance of the annealed In2O3:H thin film against radar electromagnetic waves. It provides a guideline for fabricating lightweight, thin, and multi-functional shielding infrared transparent materials in the key fields of spacecraft and high precision electronics. Full article
(This article belongs to the Special Issue Nanostructured Materials for Shielding Applications)
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31 pages, 10453 KiB  
Article
Radiation Shielding Tests of Crosslinked Polystyrene-b-Polyethyleneglycol Block Copolymers Blended with Nanostructured Selenium Dioxide and Boron Nitride Particles
by Zehra Merve Cinan, Burcu Erol, Taylan Baskan, Saliha Mutlu, Bülend Ortaç, Sevil Savaskan Yilmaz and Ahmet Hakan Yilmaz
Nanomaterials 2022, 12(3), 297; https://doi.org/10.3390/nano12030297 - 18 Jan 2022
Cited by 12 | Viewed by 2526
Abstract
In this work, gamma-ray shielding features of crosslinked polystyrene-b-polyethyleneglycol block copolymers (PS-b-PEG) blended with nanostructured selenium dioxide (SeO2) and boron nitride (BN) particles were studied. This research details several radiation shielding factors i.e., mass attenuation coefficient (μm), linear [...] Read more.
In this work, gamma-ray shielding features of crosslinked polystyrene-b-polyethyleneglycol block copolymers (PS-b-PEG) blended with nanostructured selenium dioxide (SeO2) and boron nitride (BN) particles were studied. This research details several radiation shielding factors i.e., mass attenuation coefficient (μm), linear attenuation coefficient (μL), radiation protection efficiency (RPE), half-value layer (HVL), tenth-value layer (TVL), and mean free path (MFP). The irradiation properties of our nanocomposites were investigated with rays from the 152Eu source (in the energy intervals from 121.780 keV to 1408.010 keV) in a high-purity germanium (HPGe) detector system, and analyzed with GammaVision software. Moreover, all radiation shielding factors were determined by theoretical calculus and compared with the experimental results. In addition, the morphological and thermal characterization of all nanocomposites was surveyed with various techniques i.e., nuclear magnetic resonance (NMR), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM). Acceptable compatibility was revealed and observed in all nanocomposites between the experimental and theoretical results. The PS-b-PEG copolymer and nanostructured SeO2 and BN particles exerted a significant effect in enhancing the resistance of the nanocomposites, and the samples with high additive rates exhibited better resistance than the other nanocomposites. From the achieved outcomes, it can be deduced that our polymer-based nanocomposites can be utilized as a good choice in the gamma-irradiation-shielding discipline. Full article
(This article belongs to the Special Issue Nanostructured Materials for Shielding Applications)
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