Results 11 to 20 of about 19,927 (215)

Microstructure and mechanical properties of B4C/2024Al functionally gradient composites

open access: yesMaterials & Design, 2022
In this research, a kind of 70-47-25% B4C/2024Al functionally graded materials (FGMs) were prepared by squeeze casting. The interfacial microstructure, precipitate characteristics and mechanical properties of B4C/2024Al FGMs were mainly studied.
Z.L. Chao   +9 more
doaj   +1 more source

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

open access: yes, 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.   +6 more
core   +3 more sources

Microstructure and Wear Properties of Aluminum Metal Matrix Composite (Al6061-B4C) Fabricated by Stir Casting Process [PDF]

open access: yesArchives of Metallurgy and Materials
Mechanical properties of Al6061-B4C composites fabricated by stir casting method, even though over 120 µm B4C reinforcement was used, was evaluated.
Sun Kyu Choi   +5 more
doaj   +1 more source

Characterization of Pd/Y multilayers with B4C barrier layers using GIXR and x-ray standing wave enhanced HAXPES [PDF]

open access: yes, 2018
Pd/Y multilayers are high reflectance mirrors designed to work in the 7.5-11 nm wavelength range. Samples, prepared by magnetron sputtering, are deposited with or without B4C barrier layers located at the interfaces of Pd and Y layers to reduce ...
Giglia, A.   +8 more
core   +2 more sources

Additive manufacturing of graded B4C-Al cermets with complex shapes

open access: yesMaterials & Design, 2020
Fabrication of boron carbide (B4C) parts through direct ink writing at room temperature has been demonstrated. The 3D printed B4C parts were made from aqueous, thixotropic ink consisting of B4C particles with a solid loading ranging from 50.0 to 59.3 vol%
Swetha Chandrasekaran   +7 more
doaj   +1 more source

Microstructural and XRD analysis and study of the properties of the system Ti-TiAl-B4C processed under different operational conditions [PDF]

open access: yes, 2018
High specific modulus materials are considered excellent for the aerospace industry. The system Ti-TiAl-B4C is presented herein as an alternative material. Secondary phases formed in situ during fabrication vary depending on the processing conditions and
Arévalo Mora, Cristina María   +4 more
core   +2 more sources

Modification of as-cast Al-Mg/B4C composite by addition of Zr [PDF]

open access: yes, 2016
Zirconium was used in Al-Mg/B4C composite to improve compocasting efficiency by increasing particle incorporation. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) results revealed that by addition of zirconium a reaction
Bahremand, M. R.   +4 more
core   +2 more sources

Improving of the wear resistance of working parts agricultural machinery by the implementation of the effect of self-sharpening [PDF]

open access: yes, 2016
The failure of the cutting elements of farm machinery is due to the blunting of cutting edges (increase of their radius) till the limit values. The most effective method for increasing the wear resistance of farm machinery is the realization of self ...
Arifa, W.   +6 more
core   +1 more source

Microstructure Analysis of Neutron Absorber Al/B4C Metal Matrix Composites

open access: yesMetals, 2017
The microstructure of Al/B4C metal matrix composites (MMCs) used as neutron absorbers in both dry storage casks and wet storage pools of spent nuclear fuel was analyzed by SEM and TEM.
Jianxin Lin   +6 more
doaj   +1 more source

Microstructure and mechanical properties of b4c-tib2 composites reactive sintered from B4C + TiO2 precursors

open access: yesProcessing and Application of Ceramics, 2022
Ceramic composites consisting of a boron carbide (B4C) matrix and titanium diboride (TiB2) secondary phase were obtained by reactive sintering from boron carbide powder with 40 and 50wt.% of titanium dioxide (TiO2) additive. The same sintering temperature of 1850?C and pressure of 35MPa, but different sintering times from 15 to 60min, were ...
Švec Pavol, Čaplovič L’ubomír
openaire   +2 more sources

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