Results 41 to 50 of about 4,678 (231)

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Ultrathin crystalline metal borides synthesized by atomic substitution [PDF]

, 2021
Transition metal borides (labeled as MBenes) nanosheets, an emerging family of two dimensional (2D) materials, is considered promising in the fields of electrocatalysis, ion batteries and superconductors, despite only a few MBenes have been successfully ...
Ren, Haoqi
core  

Short-Term Oxidation of HfB₂-SiC Based UHTC in Supersonic Flow of Carbon Dioxide Plasma

Plasma
The short-term (5 min) exposure to the supersonic flow of carbon dioxide plasma on ultrahigh-temperature ceramics of HfB2-30vol.%SiC composition has been studied.
Aleksey V. Chaplygin, Elizaveta P. Simonenko, Mikhail A. Kotov, Vladimir I. Sakharov, Ilya V. Lukomskii, Semen S. Galkin, Anatoly F. Kolesnikov, Anton S. Lysenkov, Ilya A. Nagornov, Artem S. Mokrushin, Nikolay P. Simonenko, Nikolay T. Kuznetsov, Mikhail Y. Yakimov, Andrey N. Shemyakin, Nikolay G. Solovyov   +14 more
doaj   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

Advanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He, Wenbo Wang, Simon Schweidler, Yanjiao Ma, Ben Breitung, Torsten Brezesinski   +5 more
wiley   +1 more source

Electronic Structure and Chemical Bonding of the First-, Second-, and Third-Row-Transition-Metal Monoborides: The Formation of Quadruple Bonds in RhB, RuB, and TcB

Molecules, 2023
Boron presents an important role in chemistry, biology, and materials science. Diatomic transition-metal borides (MBs) are the building blocks of many complexes and materials, and they present unique electronic structures with interesting and peculiar ...
Constantinos Demetriou, Christina Eleftheria Tzeliou, Alexandros Androutsopoulos, Demeter Tzeli   +3 more
doaj   +1 more source

Stress‐to‐Light Conversion in an Earth‐Abundant Oxide Semiconductor

Advanced Science, EarlyView.
Stress‐to‐light conversion in solids represents a unique photonic functionality, yet it has never been realized in a chemically simple and sustainable material. Here, we show that sustainable semiconductor ZnO exhibits strong near‐infrared (NIR) luminescence under elastic stress when defect‐engineered to stabilize the p‐type state.
Tomoki Uchiyama, Koki Otonari, Reona Omori, Guangfa Yang, Eiji Nishibori, Ying Chen, Xu‐Guang Zheng, Chao‐Nan Xu   +7 more
wiley   +1 more source

Topotactic BI3-assisted borodization: synthesis and electrocatalysis applications of transition metal borides [PDF]

, 2022
A facile and universal route for synthesizing transition metal borides has been developed by reaction of boron triiodide (BI3) with elemental transition metals.
Chang, Tsz Hin, Woo, Katherine E., Viswanathan, Gayatri, Sousa, Viviana, Kolen'Ko, Yury, Chen, Wei, Costa Figueiredo, Marta; id_orcid, Kong, Seongyoung, Kovnir, Kirill, Díez, Aida, Lebedev, Oleg I., Costa Figueiredo, Marta, Díez, Aida M., Lebedev, Oleg, Woo, Katherine, Kolen'ko, Yury V.   +15 more
core   +1 more source

High-T c 2D ambient BCS superconductors in hydrogenated transition-metal borides

npj 2D Materials and Applications
The discovery of MgB2, with T c of 39 K, has inspired intensive studies on various metal (di)-borides to identify other potential conventional high-temperature superconductors.
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J. Ackland   +2 more
doaj   +1 more source

Characterizations and boron diffusion modelling on the AISI H13 steel [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy
A kinetic approach accounting for the linearity of boron profiles through the boronized layers on AISI H13 steel was developed. It aims to track the temporal evolution of the thicknesses of the FeB and (FeB + Fe2B) layers by considering new expressions ...
Ortiz-Domínguez M., Keddam M., Morales-Robles Á.J.   +2 more
doaj   +1 more source

HRXRD study of the theoretical densities of novel reactive sintered boride candidate neutron shielding materials

Nuclear Materials and Energy, 2020
Reactive Sintered Borides (RSBs) are novel borocarbide materials derived from FeCr-based cemented tungsten (FeCr-cWCs) show considerable promise as compact radiation armour for proposed spherical tokamak (Humphry-Baker, 2007 [1], [2], [3], [4], [5].
J.M. Marshall, D. Walker, P.A. Thomas
doaj   +1 more source