Results 1 to 10 of about 4,890 (161)

Phase Transitions in Boron Carbide. [PDF]

Materials (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

Construction and mechanical properties of boron carbide/regenerated cellulose composite fiber based on copper ammonia method. [PDF]

PLoS ONE
The fabrication and mechanical properties of boron carbide/regenerated cellulose composite fibers prepared via the copper ammonia method were investigated.
Yin Tang, Shouwei Ban, Jing Sun, Jianhua Zheng   +3 more
doaj   +2 more sources

Toughening Mechanism in Nanotwinned Boron Carbide: A Molecular Dynamics Study [PDF]

Nanomaterials
Boron carbide ceramics are potentially ideal candidates for lightweight bulletproof armor, but their use is currently limited by their low fracture toughness.
Hongchi Zhang, Yesheng Zhong, Xiaoliang Ma, Lin Yang, Xiaodong He, Liping Shi   +5 more
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Breaking the icosahedra in boron carbide. [PDF]

Proc 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, An Q, Sato T, Breen AJ, Ringer SP, Goddard WA, Cairney JM, Hemker KJ.   +7 more
europepmc   +5 more sources

Bone Marrow-Derived Macrophages Loaded with Boron Carbide Nanoparticles Targeting the Glioblastoma Microenvironment for Boron Neutron Capture Therapy [PDF]

International Journal of Nanomedicine
Anna Rudawska,1 Agnieszka Szczygieł,1 Katarzyna Węgierek-Ciura,1 Jagoda Mierzejewska,1 Dawid Kozień,2 Paulina Żeliszewska,3 Monika Chaszczewska-Markowska,1 Piotr Rusiniak,4 Katarzyna Wątor,4 Zbigniew P ...
Rudawska A, Szczygieł A, Węgierek-Ciura K, Mierzejewska J, Kozień D, Żeliszewska P, Chaszczewska-Markowska M, Rusiniak P, Wątor K, Pędzich Z, Pajtasz-Piasecka E, Szermer-Olearnik B   +11 more
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Boron carbide nanoparticles for boron neutron capture therapy. [PDF]

RSC 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, Yu Y, Zhang B, Zhu K, Cheng Y, Zhang T.   +5 more
europepmc   +3 more sources

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

Journal of Nanobiotechnology
Background 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.
Anna Wróblewska, Bożena Szermer-Olearnik, Agnieszka Szczygieł, Katarzyna Węgierek-Ciura, Jagoda Mierzejewska, Dawid Kozień, Paulina Żeliszewska, Roksana Kruszakin, Paweł Migdał, Zbigniew Pędzich, Elżbieta Pajtasz-Piasecka   +10 more
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Advanced Boron Carbide Matrix Nanocomposites Obtained from Liquid-Charge: Focused Review

Condensed Matter, 2023
Boron carbide is known as a hard material; it possesses a unique complex of physical-mechanical properties and has diverse applications in industries.
Levan Chkhartishvili, Archil Mikeladze, Otar Tsagareishvili, Vakhtang Kvatchadze, Valery Tavkhelidze, Zviad Mestvirishvili, Dimitri Driaev, Natia Barbakadze, Lili Nadaraia, Ketevan Sarajishvili, Irma Jinikashvili, Manana Buzariashvili, Roin Chedia   +12 more
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Transient interactions of boron carbide with molten uranium oxide

Nuclear Materials and Energy, 2021
Thermodynamic equilibrium calculations have shown that, at the elevated temperatures anticipated during severe accidents, uranium oxide-boron carbide interactions are likely to result in significant boron volatilization and the formation of uranium ...
Christophe Journeau, Monika Kiselová, Igor Pozniak, Petr Bezdička, Petr Svora, Jan Šubrt, Sevostian Bechta   +6 more
doaj   +1 more source

Location of Al and Si atoms in substituted boron carbide

Хімія, фізика та технологія поверхні, 2023
Boron carbide is a material of interest for personal body armor, but its low fracture toughness and amorphization limits its widespread use. Al and Si atoms in doped boron carbide reduce this problem.
V. V. Garbuz, V. A. Sydorenchuk, V. B. Muratov, L. N. Kuzmenko, A. A. Vasiliev, P. V. Mazur, M. V. Karpets, T. V. Khomko, T. A. Silinska, T. N. Terentyeva, L. O. Romanova   +10 more
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