A novel (La0.2Ce0.2Gd0.2Er0.2Tm0.2)2(WO4)3 high-entropy ceramic material for thermal neutron and gamma-ray shielding

Zhang, Xuesong; Li, Yuguang; Li, Changxiang; Yang, Fan; Jiang, Zhe; Xue, Liyan; Shao, Zhiheng; Zhao, Zhigang; Xie, Meiying; Yu, Shuwen

doi:10.1016/j.matdes.2021.109722

Cited by 24 publications

(5 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A recent study of (La 0.2 Ce 0.2 Gd 0.2 Er 0.2 Tm 0.2 ) 2 (WO 4 ) 3, HEC powder has shown promise in as radiation shielding in a mixed thermal neutron and γ-ray radiation environment [83]. The authors sought to optimize γ-ray shielding in the 40-88 keV range and the thermal neutron shielding though high absorbing cross section of the rare earth metals, in combination with predicted improved radiation tolerance from the high entropy material.…”

Section: High Entropy Carbidesmentioning

confidence: 99%

“…Showing some promise, initial studies on (AlCoCrCu 0.5 FeNi) 3 O 4 have shown indication of autonomous self-repair processing of damage from electromagnetic irradiation and mechanical impact warranting further investigation across compositions and environments [108]. Other applications, exploring the absorption of thermal neutron and gamma-rays by HECs show modest promise as radiation shielding materials [83], are still emerging as this young field grows.…”

Section: Outlook and Research Needsmentioning

confidence: 99%

See 1 more Smart Citation

High entropy ceramics for applications in extreme environments

Ward,

Wilkerson,

Musicó

et al. 2024

J. Phys. Mater.

View full text Add to dashboard Cite

Compositionally complex materials have demonstrated extraordinary promise for structural robustness in extreme environments. Of these, the most commonly thought of are high entropy alloys, where chemical complexity grants uncommon combinations of hardness, ductility, and thermal resilience. In contrast to these metal-metal bonded systems, the addition of ionic and covalent bonding has led to the discovery of high entropy ceramics. These materials also possess outstanding structural, thermal, and chemical robustness but with a far greater variety of functional properties which enable access to continuously controllable magnetic, electronic, and optical phenomena. In this experimentally focused perspective, we outline the potential for high entropy ceramics in functional applications under extreme environments, where intrinsic stability may provide a new path toward inherently hardened device design. Current works on high entropy carbides, actinide bearing ceramics, and high entropy oxides are reviewed in the areas of radiation, high temperature, and corrosion tolerance where the role of local disorder is shown to create pathways toward self-healing and structural robustness. In this context, new strategies for creating future electronic, magnetic, and optical devices to be operated in harsh environments are outlined.

show abstract

Section: High Entropy Carbidesmentioning

confidence: 99%

Section: Outlook and Research Needsmentioning

confidence: 99%

High entropy ceramics for applications in extreme environments

Ward,

Wilkerson,

Musicó

et al. 2024

J. Phys. Mater.

View full text Add to dashboard Cite

show abstract

“…Recently, these systems have become increasingly popular due to their diversity in compositional design, which can be tailored to meet specific needs in different application scenarios [ 59 ]. For instance, Zhang et al [ 60 ] designed and synthesized a novel monoclinic-type high-entropy ceramic (La 0.2 Ce 0.2 Gd 0.2 Er 0.2 Tm 0.2 ) 2 (WO 4 ) 3 powder by high-temperature sintering and ball milling processes. Due to the improved phase stability offered by the high entropy effect, the powder was less likely to fail when exposed to radiation.…”

Section: Gd-containing Inorganic Nonmetallic Neutron Shielding Materialsmentioning

confidence: 99%

Recent Progress in Gd-Containing Materials for Neutron Shielding Applications: A Review

Wang

Yang

et al. 2023

Materials

View full text Add to dashboard Cite

With the rising demand for nuclear energy, the storage/transportation of radioactive nuclear by-products are critical safety issues for humans and the environment. These by-products are closely related to various nuclear radiations. In particular, neutron radiation requires specific protection by neutron shielding materials due to its high penetrating ability to cause irradiation damage. Herein, a basic overview of neutron shielding is presented. Since gadolinium (Gd) has the largest thermal neutron capture cross-section among various neutron absorbing elements, it is an ideal neutron absorber for shielding applications. In the last two decades, there have been many newly developed Gd-containing (i.e., inorganic nonmetallic-based, polymer-based, and metallic-based) shielding materials developed to attenuate and absorb the incident neutrons. On this basis, we present a comprehensive review of the design, processing methods, microstructure characteristics, mechanical properties, and neutron shielding performance of these materials in each category. Furthermore, current challenges for the development and application of shielding materials are discussed. Finally, the potential research directions are highlighted in this rapidly developing field.

show abstract

“…However, the limited available research on the radiation absorption capacity of some HEMs has produced encouraging results. For example, Zhang et al [ 37 ] investigated experimentally the thermal neutron and gamma-ray shielding properties of the (La 0·2 Ce 0.2 Gd 0.2 Er 0·2 Tm 0.2 ) 2 (WO 4 ) 3 single-phase high-entropy ceramic material and concluded that this material has good gamma-ray shielding properties in both the low energy and medium energy regions. It is also convenient for thermal neutron and gamma-ray shielding.…”

Section: Introductionmentioning

confidence: 99%