Results 31 to 40 of about 38,074 (256)

Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis

International Journal of Analytical Chemistry, 2022
In order to solve the basic problem of high-temperature sintering of molybdenum carbide restricting the efficient construction of molybdenum carbide nanostructures and the full play of hydrogen evolution performance, this article studies the preparation ...
Hao Zhou
doaj   +1 more source

Functionally Graded Boron Carbide [PDF]

, 2010
Lightweight body armor is important for the protection of US soldiers in the field. Here, fabrication techniques were developed for producing graded porosity B{sub 4}C, and for producing aluminum-B{sub 4}C and epoxy-B{sub 4}C functionally graded materials. The key fabrication aspect was obtaining the graded porosity B{sub 4}C.
Petrovic, J. J., McClellan, K. J., Kise, C. D., Hoover, R. C., Scarborough, W. K.   +4 more
openaire   +1 more source

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Nanotwins soften boron-rich boron carbide (B13C2) [PDF]

Applied Physics Letters, 2017
Extensive studies of metals and alloys have observed that nanotwins lead to strengthening, but the role of nanotwins in ceramics is not well established. We compare here the shear strength and the deformation mechanism of nanotwinned boron-rich boron carbide (B13C2) with the perfect crystal under both pure shear and biaxial shear deformations.
Qi An, William A. Goddard
openaire   +2 more sources

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Dynamical Mechanical Behaviors and Enhanced Ductility Mechanisms of Boron Carbide Based on Deep Potential Molecular Dynamics Simulations

Gaoya wuli xuebao
Boron carbide, a typical lightweight and high-strength ceramic material, has broad application prospects in national defense, military, and aerospace. However, the nanoscale amorphous shear band, which mainly arises from the destruction of icosahedra, is
Jun LI, Jiahe SONG, Wei JI, Lisheng LIU
doaj   +1 more source

Mechanical properties and tribological characteristics of B4C-SiC ceramic composite in artificial seawater

Journal of Asian Ceramic Societies, 2021
To improve the mechanical properties and tribological characteristics of boron carbide (B4C) ceramic, silicon carbide (SiC) as an incorporation phase was added into boron carbide matrix.
Wei Chen, Hao Wenhui, ziqiang Zhao, Nairu He, Li Xiuqing, Huaqiang Li   +5 more
doaj   +1 more source

Synthesis of boride-titanium coatings by magnetron sputtering of composite targetss

Eurasian Journal of Physics and Functional Materials, 2021
The paper presents the results of investigations of the structure and phase composition of titanium boride coatings deposited by magnetron sputtering from a target of a complex composition onto a steel substrate.
A. S. Larionov, E. A. Zhakanbaeyev, A. L. Kozlovski, A. S. Dikov, S. B. Kislitsin, L. V. Chekushina   +5 more
doaj   +1 more source

Laser Engineering of HfN‐Based Nanoparticles for Safe NIR‐I Photothermal and X‐ray Enhancing Cancer Therapies

Advanced Functional Materials, EarlyView.
In this study, we produced HfN‐based nanoparticles via femtosecond laser ablation in acetone. The nanoparticles exhibit a red‐shifted plasmonic resonance in the NIR‐I window, colloidal stability after coating with polyethyleneglycol, and excellent biocompatibility. The photothermal and X‐ray sensitization therapeutic effects were demonstrated for tumor
Julia S. Babkova, Ivan V. Zelepukin, Lyubov V. Gorelik, Anton L. Popov, Andrei I. Pastukhov, Gleb V. Tikhonowski, Maxim S. Savinov, Danil D. Kolmanovich, Nikita A. Pivovarov, Alina Yu. Kapitannikova, Anton A. Popov, Anna S. Sogomonyan, Vsevolod A. Skribitsky, Aziz B. Mirkasymov, Andrei V. Kabashin, Sergey M. Deyev   +15 more
wiley   +1 more source

Peltier effect during spark plasma sintering of boron carbide

Results in Physics, 2021
The influence of the Peltier thermoelectric effect on the evolution of temperature, density, and grain size heterogeneities during spark plasma sintering (SPS) of boron carbide is numerically evaluated.
Joseph Diatta, Elisa Torresani, Andrey Maximenko, Chris Haines, Darold Martin, Eugene Olevsky   +5 more
doaj   +1 more source