Results 1 to 10 of about 400,409 (217)

A novel ceramic with low friction and wear toward tribological applications: Boron carbide-silicon carbide

open access: yesAdvances in Colloid and Interface Science, 2022
Boron carbide‑silicon carbide ceramic is a novel material as tribological structural components. Compared with traditional tribo-components composed of single-phase boron carbide ceramics or single-phase silicon carbide ceramics, boron carbide‑silicon ...

exaly   +2 more sources

Phase Transitions in Boron Carbide. [PDF]

open access: yesMaterials (Basel), 2023
The idealized rhombohedral unit cell of boron carbide is formed by a 12-atom icosahedron and a 3-atom linear chain. Phase transitions are second order and caused by the exchange of B and C sites or by vacancies in the structure. Nevertheless, the impact of such minimal structural changes on the properties can be significant.
Werheit H.
europepmc   +3 more sources

An overview of the synthesis of silicon carbide–boron carbide composite powders

open access: yesNanotechnology Reviews, 2023
Recently, silicon carbide–boron carbide composite ceramics have attracted more and more attention. The most important achievements of the silicon carbide–boron carbide composite ceramics should be applied in terms of mechanical, physical, and chemical ...
Wei Zhang
exaly   +2 more sources

Dislocation-mediated shear amorphization in boron carbide. [PDF]

open access: yesSci Adv, 2021
A previously unidentified amorphization mechanism of boron carbide yields insights into the failure of superhard materials. The failure of superhard materials is often associated with stress-induced amorphization.
Reddy KM   +8 more
europepmc   +2 more sources

Macrophages as carriers of boron carbide nanoparticles dedicated to boron neutron capture therapy. [PDF]

open access: yesJ Nanobiotechnology
The use of cells as carriers for the delivery of nanoparticles is a promising approach in anticancer therapy, mainly due to their natural properties, such as biocompatibility and non-immunogenicity.
Wróblewska A   +10 more
europepmc   +2 more sources

Boron-Rich Boron Carbide Nanoparticles as a Carrier in Boron Neutron Capture Therapy: Their Influence on Tumor and Immune Phagocytic Cells. [PDF]

open access: yesMaterials (Basel), 2021
The aim of the work was to study the interaction between boron-rich boron carbide nanoparticles and selected tumor and immune phagocytic cells. Experiments were performed to investigate the feasibility of the application of boron carbide nanoparticles as
Kozień D   +8 more
europepmc   +2 more sources

Neutron Shielding Performance of 3D-Printed Boron Carbide PEEK Composites. [PDF]

open access: yesMaterials (Basel), 2020
Polyethylene is used as a traditional shielding material in the nuclear industry, but still suffers from low softening point, poor mechanical properties, and difficult machining. In this study, novel boron carbide polyether-ether-ketone (PEEK) composites
Wu Y, Cao Y, Wu Y, Li D.
europepmc   +2 more sources

Breaking the icosahedra in boron carbide. [PDF]

open access: yesProc Natl Acad Sci U S A, 2016
Significance The extraordinary hardness of boron compounds is related to their internal structure, which is comprised of 12-atom icosahedra arranged in crystalline lattices. In these hierarchical materials, the icosahedra are easy to image with EM, but individual atoms are not.
Xie KY   +7 more
europepmc   +5 more sources

Boron carbide nanoparticles for boron neutron capture therapy. [PDF]

open access: yesRSC Adv
Boron carbide nanoparticles were chemically modified with folic acid conjugated via PEG linkers, achieving tumor boron levels up to 50 μg g −1 dried tissue 24 h post-injection.
Xu S   +5 more
europepmc   +3 more sources

Tuning the deformation mechanisms of boron carbide via silicon doping. [PDF]

open access: yesSci Adv, 2019
Si-doped boron carbide could be a promising material for the next-generation body armor. Boron carbide suffers from a loss of strength and toughness when subjected to high shear stresses due to amorphization.
Xiang S   +11 more
europepmc   +2 more sources

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