Results 91 to 100 of about 19,927 (215)

Systematic effects of carbon doping on the superconducting properties of Mg(B$_{1-x}$C$_x$)$_2$

open access: yes, 2003
The upper critical field, $H_{c2}$, of Mg(B$_{1-x}$C$_x$)$_2$ has been measured in order to probe the maximum magnetic field range for superconductivity that can be attained by C doping.
A. Gurevich   +10 more
core   +1 more source

Planar shock compression of spark plasma sintered B4C and B4C–TiB2 ceramic composites

open access: yesAIP Advances
Blending of ceramic constituent phases enhances sinterability and performance in high strength ceramics. Here, a near fully dense blended boron carbide (B4C)–titanium diboride (TiB2) composite produced through spark plasma sintering (SPS) is probed to understand the mechanical performance under dynamic uniaxial strain, or shock compression.
Scott A. Turnage   +4 more
openaire   +2 more sources

Superconducting and Normal State Properties of Heavily Hole-Doped Diamond

open access: yes, 2004
We report measurements of the specific heat, Hall effect, upper critical field and resistivity on bulk, B-doped diamond prepared by reacting amorphous B and graphite under high-pressure/high-temperature conditions. These experiments establish unambiguous
E. A. Ekimov   +7 more
core   +1 more source

Microstructural features of SHS-pressing ZrB2-B4C and TiB2-B4C composites [PDF]

open access: yesLetters on Materials, 2019
Vladimir Shcherbakov   +2 more
openaire   +1 more source

Investigations on the system boron-carbon silicon [PDF]

open access: yes
The above elements form with each other binary compounds which are very interesting from the point of view of their structure and their chemistry and which are important for technology.
Ettmayer, P.   +3 more
core   +1 more source

Compatibility of refractory materials for nuclear reactor poison control systems [PDF]

open access: yes
Metal-clad poison rods have been considered for the control system of an advanced space power reactor concept studied at the NASA Lewis Research Center. Such control rods may be required to operate at temperatures of about 140O C.
Sinclair, J. H.
core   +1 more source

Investigating the corrosion activity of boron carbide and mica particle hybrid composites with an aluminum matrix prepared by stir casting

open access: yesResults in Engineering
This study used the potentiodynamic polarization approach to evaluate the impact of mica content on the corrosion activity of aluminium alloy fortified with boron carbide (B4C) and mica-based hybrid aluminium metal matrix composites (HMMCs). Stir casting
K. Velavan   +3 more
doaj   +1 more source

Al-B4C kompozitlerinde ıslatılabilirliği artırmak amacıyla B4C partiküllerinin yüzey özelliklerinin değiştirilmesi

open access: yes, 2020
Alüminyum matrisli, bor karbür (B4C) takviyeli kompozit malzemelerin geleneksel yöntemlerle üretiminde sıvı alüminyumun B4C partiküllerini ıslatabilirliğinin düşük olduğu bilinmektedir. Bu kompozitlerin başarılı bir şekilde üretilebilmesi için alüminyum metalinin B4C üzerindeki düşük ıslatılabilirlik probleminin çözülmesi gerekmektedir.
openaire   +1 more source

Fabrication and characterization of B4C nanowires and dense B4C ceramic/nanowires composite

open access: yes, 2012
The superior properties of boron carbide (B4C), such as high melting point, extreme hardness (ranking third after diamond and cBN), low density, good thermal and chemical resistance properties, have made it a promising material for ceramic armor applications.
openaire   +2 more sources

Optimization of PMEDM process parameters for B4C and B4C+SiC reinforced AA7075 composites

open access: yesJournal of Engineering Research
Materials: With sufficient electrical conductivity can be successfully processed by applying the electrical discharge machining (EDM) method; however, due to the presence of non-conductive particles in composites, which have been produced by adding ceramics particles, problems such as unstable machining, low material removal rate, and high tool wear ...
Gözde Keskin   +5 more
openaire   +3 more sources

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