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Reaction interaction in Hf–Nb–B4C and Hf–Nb–B4C–C systems
Electrical MetallurgyThe reaction interaction in the Hf–Nb–B4C and Hf–Nb–B4C–C systems has been studied at a temperature of 1750 °C, isotherm times of 30 and 60 min and residual argon pressure of 100 Pa. A different sequence of interactions between the reactants was established.
A.N. Astapov +2 more
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Journal of Materials Engineering and Performance, 2021
The Al-B4C composites are interestingly used for neutron shielding due to its low weight, high strength, and neutron absorbing. However, during manufacturing process of Al-B4C composites, high content of B4C which leads to aggregation is main problem, as well as the low content resulting in poor neutron absorbing.
Junfeng Zhao, Qiulin Li
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The Al-B4C composites are interestingly used for neutron shielding due to its low weight, high strength, and neutron absorbing. However, during manufacturing process of Al-B4C composites, high content of B4C which leads to aggregation is main problem, as well as the low content resulting in poor neutron absorbing.
Junfeng Zhao, Qiulin Li
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Composites Part B: Engineering, 2016
Abstract This study investigates the mechanical and machinability properties of the aluminum 6061 reinforced with boron carbide (B4C). Four aluminum 6061 composite specimens reinforced with 5 wt%, 10 wt%, 15 wt%, and 20 wt% B4C were fabricated using a powder metallurgy and hot-extrusion method. The composite samples were investigated to elucidate the
ÇITAK, RAMAZAN +2 more
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Abstract This study investigates the mechanical and machinability properties of the aluminum 6061 reinforced with boron carbide (B4C). Four aluminum 6061 composite specimens reinforced with 5 wt%, 10 wt%, 15 wt%, and 20 wt% B4C were fabricated using a powder metallurgy and hot-extrusion method. The composite samples were investigated to elucidate the
ÇITAK, RAMAZAN +2 more
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The deposition of boron and B4C
Vacuum, 1952Resume deux methodes de deposition de bore en forme elementaire et en celle de carbure par evaporation dans le vide sont decrites. La matiere est chauffee par le passage de 300 amperes dans un creuset de graphite, formant l'electrode d'un arc. Des couches de 60 μm/cm. 2 de bore elementaire et de 140 μg/cm.
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B4C/metal boride composites derived from B4C/metal oxide mixtures
Journal of the European Ceramic Society, 2007Abstract This study examines the reactions occurring from room temperature to 2180 °C during the heating under argon of mixtures of B4C and metal oxides, as well as the properties of the ceramic composites prepared by these reactions. The cations of the oxides investigated, belonged to the transition metal and to the lanthanide groups.
Adrian Goldstein +2 more
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Retention of deuterium implanted into B4C-overlaid isotropic graphites and hot-pressed B4C
Journal of Nuclear Materials, 1992Retention characteristics of two kinds of B4C-overlaid graphites and hot-pressed B4C were investigated. An ion beam of 3 keV D2+ was implanted into the specimens at room temperature. The amount of retained deuteriums was measured as function of the implantation fluence and temperature by elastic recoil detection analysis.
R. Jimbou +5 more
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Influence analysis of B4C content on the neutron shielding performance of B4C/Al
Radiation Physics and Chemistry, 2022Changyuan Li +7 more
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Microstructures and mechanical properties of a two-layer B4C/Al–B4C/TiB2 composite
Materials Science and Engineering: A, 2013Abstract A two-layer structure composite, in which one layer was B4C/Al compound and the other layer was B4C/TiB2 compound, was prepared using a two-step method for both hot pressing and infiltration of aluminum in vacuum. The experimental results showed that the two-layer B4C/Al–B4C/TiB2 composite having good interfacial bonding was prepared. Before
XinYan Yue +4 more
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Laser ablation of a B4C–polysiloxane composite
Applied Surface Science, 2002Composite materials, specifically ceramic-polymer composites and metal-polymer composites have received increased interest in a number of engineering applications, from impact protection, microelectronics to tribology. The characteristics of Nd:YAG laser ablation of a B4C:polysiloxane mixture have been studied with the use of time-integrated ...
Schmidt, M. J J, Low, D. K Y, Li, L.
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