Results 31 to 40 of about 38,530 (252)

Characterization of Carbon-Contaminated B4C-Coated Optics after Chemically Selective Cleaning with Low-Pressure RF Plasma [PDF]

, 2017
Boron carbide (B4C) is one of the few materials that is expected to be mostly resilient with respect to the extremely high brilliance of the photon beam generated by free electron lasers (FELs) and is thus of considerable interest for optical ...
Carlino, V., Dietsch, R., Fernández, H. Moreno, Pellegrin, E., Rogler, D., Sauthier, G., Thomasset, M.   +6 more
core   +3 more sources

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

Deterministic Detection of Single Ion Implantation

Advanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead, Lok Kan Wan, Maddison Coke, Janet Jacobs, Nicholas F. L. Collins, Mark C. Rosamond, Richard J. Curry   +6 more
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

Characterization of Macro/Microstructure and Corrosion Resistance of Austenitic Gas Tungsten Arc Welding Cladding

Advanced Engineering Materials, EarlyView.
Cladding is a proven method that boosts the surface qualities of mechanical parts by applying a layer of more durable material over a base substrate. This work responds to the needs of offshore and pressure vessels sectors by focusing on cladding a super austenitic steel onto low‐carbon steel through gas tungsten arc welding.
E. J. da Cruz Junior, F. M. F. A. Varasquim, F. O. Carvalho, L. F. F. Santiago, V. A. Ventrella, I. Calliari, M. Pigato   +6 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

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source