Results 131 to 140 of about 4,854 (180)

Microstructure and mechanical properties of bilayer B4C/Si-B4C composite

Materials Today Communications, 2021
Abstract Bilayer B4C based composites, B4C/Si-B4C, consisting of B4C and B4C/Si two-layer, were obtained using hot pressing method. Effect of Si content on microstructure and mechanical properties of the B4C based layered composites was investigated. The B4C/Si-B4C samples showed good interfacial bonding with different Si additions (x = 4, 8, 12 and ...
Xinyan Yue, Guanghan Guo, Mingda Huo, Zhaobo Qin, Hongqiang Ru, Jianjun Wang   +5 more
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Microstructure and mechanical properties of a three-layer B4C/Al–B4C/TiB2–B4C composite

Materials & Design (1980-2015), 2013
Abstract A three-layer structure material, consisting of B 4 C/Al, B 4 C/TiB 2 and B 4 C composites, was obtained using a two-step method for both hot pressing and aluminum infiltration in vacuum. The three-layer B 4 C/Al–B 4 C/TiB 2 –B 4 C composite showed good interfacial bonding.
XinYan Yue, JianJun Wang, ShangYong Yu, Wei Wang, HongQiang Ru   +4 more
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Microstructural analyses of B4C–CeO2 and B4C–La2O3 ceramics

Journal of Nuclear Materials, 2011
Abstract Effects of additions of CeO 2 and La 2 O 3 on microstructure and mechanical properties of B 4 C fabricated under and without hot press have been investigated. Vickers hardness and fracture strength are increased by hot press due to the reduction of porosity because the sintering rate is enhanced.
Tatsuaki Sakamoto, Shu-Chen Sun, Tomoya Furuno, Michio Kajioka, Kiyomichi Nakai, Hiroaki Kurishita, Sengo Kobayashi, Wen-Yuan Wu, Gan-Feng Tu, Seiji Matsuda   +9 more
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Directional crystallization of B4C–NbB2 and B4C–MoB2 eutectic compositions

Journal of Solid State Chemistry, 2004
Abstract We studied the directional crystallization of different compositions in B 4 C–NbB 2 and B 4 C–MoB 2 systems. The eutectic compositions for both systems are evaluated. It is shown that in the first system the rod-like eutectic structure is formed, in second, the “Chinese hieroglyphics”.
Varvara Paderno, Yuriy Paderno, Vladimir Filippov, Alfred Liashchenko   +3 more
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Properties of B4C/Al–B4C composite with a two-layer structure

Materials Research Bulletin, 2013
Abstract In order to obtain a material with a promising bulletproof performance, a two-layer structure composite consisting of B4C/Al-B4C was obtained using a two-step method for both hot pressing and infiltration aluminum in vacuum. Before aluminum infiltration the B4C porous layer of the two-layer preform looked like a three-dimensional network of ...
XinYan Yue, JianJun Wang, YangShuang Li, HongQiang Ru   +3 more
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Influence of B4C Content on Flexural Performance of Ni + B4C Microwave Composite Clads

Journal of Materials Engineering and Performance, 2021
This study focused on the development of microwave composite cladding of a Ni-based alloy reinforced with varying proportions (wt.%) of B4C such as 0, 5, 10 and 20% on a SS-304 steel substrate. Clads showed metallurgical bonding with the substrate by the partial dilution of the materials.
M. Minhaj, Sunny Zafar
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Chemical modification of B4C cap layers on Pd/B4C multilayers

Applied Surface Science, 2016
Abstract Chemical modifications of B 4 C cap layers on sputtered Pd/B 4 C multilayer coatings for X-ray optical applications were investigated using X-ray reflectivity, photoemission electron spectroscopy, photoemission electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, and infrared spectroscopy.
Ratchadaporn Supruangnet, Christian Morawe, Jean-Christophe Peffen, Hideki Nakajima, Surachet Rattanasuporn, Pat Photongkam, Nichada Jearanaikoon, Wutthikri Busayaporn   +7 more
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Influence of B4C on the tribological and mechanical properties of Al 7075–B4C composites

Composites Part B: Engineering, 2013
Abstract In the present investigation, the influence of B 4 C on the mechanical and Tribological behavior of Al 7075 composites is identified. Al 7075 particle reinforced composites were produced through casting, K 2 TiF 6 added as the flux, to overcome the wetting problem between B 4 C and liquid aluminium metal. The aluminium B 4 C composites thus
A. Baradeswaran, A. Elaya Perumal
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Study of B4C-Fe, B4C-V and B4C-P Thermoelectric Materials made by SPS for MHD Power System

33rd Plasmadynamics and Lasers Conference, 2002
$EVWUDFW The electrical conductivity, Seebeck coefficient, and the thermal conductivity of Fe -doped B4C ceramics with several Fe compositions were investigated experimentally. The ceramics specimens were made by SPS apparatus. The figure of merit for the each specimen were calculated using the above experimental results It was found that the values of
Yoshiaki Aoki, Yoshiki Miyazaki, Junichi Okino, Noriyuki Okinaka, Shigeo Yatsu, Naoyuki Kayukawa, Heishichiro Takahashi, Toshio Hirai, Mamoru Omori, Yutaka Abe   +9 more
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Dependence of the SHS reaction behavior and product on B4C particle size in Al–Ti–B4C and Al–TiO2–B4C systems

Materials Research Bulletin, 2009
Abstract Dependence of the combustion reaction behavior and product on the B 4 C particle size in the Al–Ti–B 4 C and Al–TiO 2 –B 4 C systems was investigated. The results show that in both systems, the SHS reaction kinetics is primarily controlled by diffusion.
Binglin Zou, Ping Shen, Qichuan Jiang
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