Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
8.5
4.4
Journals
Nanomaterials
Special Issues
Radiation Tolerance Nanomaterials
share announcement

Radiation Tolerance Nanomaterials

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 12141

Special Issue Editor

Prof. Dr. Feng Ren

E-Mail Website
Guest Editor
School of Physics and Technology, Wuhan University, Wuhan 430072, China
Interests: radiation-resistant nuclear nanomaterials; ion irradiation; ion beam modification

Special Issue Information

Dear Colleagues,

Developing high-performance nuclear materials for advanced nuclear reactors is an urgent task. In recent years, nanostructured materials, such as nanocrystalline, nanoporous materials, multilayered nanofilms, carbon nanotube/graphene composites, etc., have attracted a great deal of attention. These nanomaterials show high tolerance to radiation because the surface, interface, and grain boundary are perfect defect sinks to recombine or release all radiation-induced vacancies/interstitials and transmutation gas atoms. Nanomaterials with high radiation tolerance for other applications including in nanodevices are also a topic of this Special Issue.

This Special Issue on “Radiation Tolerance Nanomaterials” invites review articles and full length papers on new experimental and/or modeling studies on novel nanomaterial ideas and irradiation material research activities, where material systems include but are not limited to advanced structural materials for fission and fusion applications, plasma-facing materials, advanced nuclear waste materials, nanodevices and functional materials such as hydrogen isotopes permeation barriers, and anticorrosion coating. Research related to radiation damage evaluation on nanostructured materials by ion/electron/neutron, advanced characterization technologies on radiation-induced defects and properties, as well as in computer simulation on mechanisms for radiation damage tolerance, are also encouraged.

Prof. Dr. Feng Ren
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Nanomaterials
  • Nuclear materials
  • Radiation tolerance
  • Advanced nuclear energy systems
  • Radiation damage

Published Papers (6 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

9 pages, 5659 KiB  
Article
Structure Formation and Regulation of Au Nanoparticles in LiTaO3 by Ion Beam and Thermal Annealing Techniques
by Yong Liu, Xinqing Han, Jinhua Zhao, Jian Sun, Qing Huang, Xuelin Wang and Peng Liu
Nanomaterials 2022, 12(22), 4028; https://doi.org/10.3390/nano12224028 - 16 Nov 2022
Cited by 2 | Viewed by 1455
Abstract
The size uniformity and spatial dispersion of nanoparticles (NPs) formed by ion implantation must be further improved due to the characteristics of the ion implantation method. Therefore, specific swift heavy ion irradiation and thermal annealing are combined in this work to regulate the [...] Read more.
The size uniformity and spatial dispersion of nanoparticles (NPs) formed by ion implantation must be further improved due to the characteristics of the ion implantation method. Therefore, specific swift heavy ion irradiation and thermal annealing are combined in this work to regulate the size and spatial distributions of embedded Au NPs formed within LiTaO3 crystals. Experimental results show that small NPs migrate to deeper depths induced by 656 MeV Xe35+ ion irradiation. During thermal annealing, the growth of large Au NPs is limited due to the reductions in the number of small Au NPs, and the migrated Au NPs aggregate at deeper depths, resulting in a more uniform size distribution and an increased spatial distribution of Au NPs. The present work presents a novel method to modify the size and spatial distributions of embedded NPs. Full article
(This article belongs to the Special Issue Radiation Tolerance Nanomaterials)
►▼ Show Figures

Figure 1

14 pages, 2445 KiB  
Article
High-Resolution Photoemission Study of Neutron-Induced Defects in Amorphous Hydrogenated Silicon Devices
by Francesca Peverini, Marco Bizzarri, Maurizio Boscardin, Lucio Calcagnile, Mirco Caprai, Anna Paola Caricato, Giuseppe Antonio Pablo Cirrone, Michele Crivellari, Giacomo Cuttone, Sylvain Dunand, Livio Fanò, Benedetta Gianfelici, Omar Hammad, Maria Ionica, Keida Kanxheri, Matthew Large, Giuseppe Maruccio, Mauro Menichelli, Anna Grazia Monteduro, Francesco Moscatelli, Arianna Morozzi, Stefania Pallotta, Andrea Papi, Daniele Passeri, Marco Petasecca, Giada Petringa, Igor Pis, Gianluca Quarta, Silvia Rizzato, Alessandro Rossi, Giulia Rossi, Andrea Scorzoni, Cristian Soncini, Leonello Servoli, Silvia Tacchi, Cinzia Talamonti, Giovanni Verzellesi, Nicolas Wyrsch, Nicola Zema and Maddalena Pedioadd Show full author list remove Hide full author list
Nanomaterials 2022, 12(19), 3466; https://doi.org/10.3390/nano12193466 - 4 Oct 2022
Cited by 2 | Viewed by 1732
Abstract
In this paper, by means of high-resolution photoemission, soft X-ray absorption and atomic force microscopy, we investigate, for the first time, the mechanisms of damaging, induced by neutron source, and recovering (after annealing) of p-i-n detector devices based on hydrogenated amorphous silicon (a-Si:H). [...] Read more.
In this paper, by means of high-resolution photoemission, soft X-ray absorption and atomic force microscopy, we investigate, for the first time, the mechanisms of damaging, induced by neutron source, and recovering (after annealing) of p-i-n detector devices based on hydrogenated amorphous silicon (a-Si:H). This investigation will be performed by mean of high-resolution photoemission, soft X-Ray absorption and atomic force microscopy. Due to dangling bonds, the amorphous silicon is a highly defective material. However, by hydrogenation it is possible to reduce the density of the defect by several orders of magnitude, using hydrogenation and this will allow its usage in radiation detector devices. The investigation of the damage induced by exposure to high energy irradiation and its microscopic origin is fundamental since the amount of defects determine the electronic properties of the a-Si:H. The comparison of the spectroscopic results on bare and irradiated samples shows an increased degree of disorder and a strong reduction of the Si-H bonds after irradiation. After annealing we observe a partial recovering of the Si-H bonds, reducing the disorder in the Si (possibly due to the lowering of the radiation-induced dangling bonds). Moreover, effects in the uppermost coating are also observed by spectroscopies. Full article
(This article belongs to the Special Issue Radiation Tolerance Nanomaterials)
►▼ Show Figures

Figure 1

9 pages, 3921 KiB  
Article
Study on Irradiation Response of Nanocrystalline Phase in Sm-Doping Fluorapatite Glass-Ceramics under He Ion Irradiation
by Zhiwei Lin, Huanhuan He, Shengming Jiang, Xiaotian Hu, Jian Zhang and Huifang Miao
Nanomaterials 2022, 12(7), 1194; https://doi.org/10.3390/nano12071194 - 2 Apr 2022
Viewed by 1757
Abstract
Two different of Sm-loading fluorapatite (Ca10−2xNaxSmx(PO4)6F2, x = 1 and 2) glass-ceramics were synthesized by a two-step melt sintering method. The samples were irradiated with 50 keV He+ ions with [...] Read more.
Two different of Sm-loading fluorapatite (Ca10−2xNaxSmx(PO4)6F2, x = 1 and 2) glass-ceramics were synthesized by a two-step melt sintering method. The samples were irradiated with 50 keV He+ ions with a fluence of 2.6 × 1016 ions/cm2 at 593 K. The irradiation induced microstructural evolution were characterized by grazing incidence X-ray diffraction and cross-sectional transmission electron microscopy. For the smaller Sm-doping samples, no phase transformation is observed. Meanwhile, in the lager Sm-doping samples, the irradiation induced the crystals into smaller nanocrystals. The mechanism of the transformation of the crystalline phase was also analyzed and discussed. Full article
(This article belongs to the Special Issue Radiation Tolerance Nanomaterials)
►▼ Show Figures

Figure 1

13 pages, 5031 KiB  
Article
The Improvement of the Irradiation Resistance of Amorphous MoS2 Films by Thermal Annealing
by Rui Zhang, Hong Zhang, Xiaoming Gao and Peng Wang
Nanomaterials 2022, 12(3), 364; https://doi.org/10.3390/nano12030364 - 24 Jan 2022
Viewed by 2220
Abstract
Among the structural materials used in fusion reactors, amorphous materials can effectively inhibit the accumulation and growth of radiation-induced defects, thereby improving irradiation resistance. However, the application of solid lubricating materials should also consider the changes in their lubricating properties after irradiation. This [...] Read more.
Among the structural materials used in fusion reactors, amorphous materials can effectively inhibit the accumulation and growth of radiation-induced defects, thereby improving irradiation resistance. However, the application of solid lubricating materials should also consider the changes in their lubricating properties after irradiation. This study shows that the ability to inhibit the deterioration of lubricating properties is not reflected in the amorphous MoS2 film. When the ion fluence reached 4.34 × 1014 ion/cm2, its wear life was reduced by two orders of magnitude, reaching 8.2 × 103 revolutions. After the amorphous MoS2 film is vacuum annealed, its structural stability and resistance to deterioration of lubricating properties are improved. When the ion fluence reaches 1.09 × 1015 ion/cm2, for instance, the wear life of the MoS2 film annealed at 300 °C remains at 8.4 × 104 revolutions. The higher irradiation tolerance of MoS2 films comes from the reduction in intrinsic defects by thermal annealing, which increases the internal grain size and volume fraction of grain boundaries, further providing an effective sink for irradiation defects. Full article
(This article belongs to the Special Issue Radiation Tolerance Nanomaterials)
►▼ Show Figures

Figure 1

15 pages, 5058 KiB  
Article
Effects of Fe-Ions Irradiation on the Microstructure and Mechanical Properties of FeCrAl-1.5wt.% ZrC Alloys
by Runzhong Wang, Hui Wang, Xiaohui Zhu, Xue Liang, Yuanfei Li, Yunxia Gao, Xuguang An and Wenqing Liu
Nanomaterials 2021, 11(12), 3423; https://doi.org/10.3390/nano11123423 - 17 Dec 2021
Cited by 1 | Viewed by 2069
Abstract
Fe-13Cr-3.5Al-2.0Mo-1.5wt.% ZrC alloy was irradiated by 400 keV Fe+ at 400 °C at different doses ranging from 6.35 × 1014 to 1.27 × 1016 ions/cm2 with a corresponding damage of 1.0–20.0 dpa, respectively, to investigate the effects of different [...] Read more.
Fe-13Cr-3.5Al-2.0Mo-1.5wt.% ZrC alloy was irradiated by 400 keV Fe+ at 400 °C at different doses ranging from 6.35 × 1014 to 1.27 × 1016 ions/cm2 with a corresponding damage of 1.0–20.0 dpa, respectively, to investigate the effects of different radiation doses on the hardness and microstructure of the reinforced FeCrAl alloys in detail by nanoindentation, transmission electron microscopy (TEM), and atom probe tomography (APT). The results show that the hardness at 1.0 dpa increases from 5.68 to 6.81 GPa, which is 19.9% higher than a non-irradiated specimen. With an increase in dose from 1.0 to 20.0 dpa, the hardness increases from 6.81 to 8.01 GPa, which is an increase of only 17.6%, indicating that the hardness has reached saturation. TEM and APT results show that high-density nano-precipitates and low-density dislocation loops forme in the 1.0 dpa region, compared to the non-irradiated region. Compared with 1.0 dpa region, the density and size of nano-precipitates in the 20.0 dpa region have no significant change, while the density of dislocation loops increases. Irradiation results in a decrease of molybdenum and carbon in the strengthening precipitates (Zr, Mo) (C, N), and the proportionate decrease of molybdenum and carbon is more obvious with the increase in damage. Full article
(This article belongs to the Special Issue Radiation Tolerance Nanomaterials)
►▼ Show Figures

Figure 1

12 pages, 5832 KiB  
Article
High Transient-Thermal-Shock Resistant Nanochannel Tungsten Films
by Tao Cheng, Wenjing Qin, Youyun Lian, Xiang Liu, Jun Tang, Guangxu Cai, Shijian Zhang, Xiaoyun Le, Changzhong Jiang and Feng Ren
Nanomaterials 2021, 11(10), 2663; https://doi.org/10.3390/nano11102663 - 11 Oct 2021
Cited by 5 | Viewed by 1920
Abstract
Developing high-performance tungsten plasma-facing materials for fusion reactors is an urgent task. In this paper, novel nanochannel structural W films prepared by magnetron sputtering deposition were irradiated using a high-power pulsed electron beam or ion beam to study their edge-localized modes, such as [...] Read more.
Developing high-performance tungsten plasma-facing materials for fusion reactors is an urgent task. In this paper, novel nanochannel structural W films prepared by magnetron sputtering deposition were irradiated using a high-power pulsed electron beam or ion beam to study their edge-localized modes, such as transient thermal shock resistance. Under electron beam irradiation, a 1 μm thick nanochannel W film with 150 watt power showed a higher absorbed power density related cracking threshold (0.28–0.43 GW/m2) than the commercial bulk W (0.16–0.28 GW/m2) at room temperature. With ion beam irradiation with an energy density of 1 J/cm2 for different pulses, the bulk W displayed many large cracks with the increase of pulse number, while only micro-crack networks with a width of tens of nanometers were found in the nanochannel W film. For the mechanism of the high resistance of nanochannel W films to transient thermal shock, a residual stress analysis was made by Grazing-incidence X-ray diffraction (GIXRD), and the results showed that the irradiated nanochannel W films had a much lower stress than that of the irradiated bulk W, which indicates that the nanochannel structure can release more stress, due to its special nanochannel structure and ability for the annihilation of irradiation induced defects. Full article
(This article belongs to the Special Issue Radiation Tolerance Nanomaterials)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-6
Back to TopTop