Results 31 to 40 of about 221,568 (271)
The heat of formation of boron carbide
Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1968 The standard heat of combustion in fluorine of a boron carbide sample having the composition B4.222C was determined from the heats of combustion of polytetrarluoroethylene and of boron carbide-polytetrafluoroethylene mixtures. The energy of the combustion reaction was measured in an isothermal-jacket bomb calorimeter.
E S, Domalski, G T, Armstrong
openaire +2 more sources
Inelastic deformation and failure of tungsten carbide under ballistic-loading conditions [PDF]
, 2010 High-speed photography has been used to investigate the dynamic behaviour of similar grades of WC-Co hardmetals during ballistic impacts with velocities in the range of 28-484 m/s.
Hazell, P.J. +10 more
core +1 more source
Study of interface reaction in a B4C/Cr mirror at elevated temperature using soft X-ray reflectivity
Journal of Synchrotron Radiation, 2022 Boron carbide is a prominent material for high-brilliance synchrotron optics as it remains stable up to very high temperatures. The present study shows a significant change taking place at 550°C in the buried interface region formed between the Cr ...
Mohammed H. Modi +7 more
doaj +1 more source
Materials & DesignWe characterize the suitability of two additive manufactured materials for use in shielding thermal neutrons for neutron scattering instrumentation. We compare two different boron based additive manufactured masks to a traditionally manufactured boron ...
M.B. Stone +5 more
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Investigation of the effect of Argon flow on the morphology of B4C nanoparticles synthesized by the VLS method [PDF]
Journal of Nanostructures, 2019 In this paper, new various morphologies of boron carbide were successfully synthesized using carbon black, activated carbon and boron oxide precursors as well as using cobalt nanoparticles as catalysts.
Ali Alizadeh, Mohammad reza Mahoodi
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Nanomechanical Responses of Boron Carbide [PDF]
, 2021 Nanomechanical responses of brittle materials, such as glass and ceramics, are important for various industrial applications. Understanding their deformation and failure mechanisms would offer new knowledge and help design materials with better ...
Lien, Hsu-Ming
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Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis
International Journal of Analytical Chemistry, 2022 In order to solve the basic problem of high-temperature sintering of molybdenum carbide restricting the efficient construction of molybdenum carbide nanostructures and the full play of hydrogen evolution performance, this article studies the preparation ...
Hao Zhou
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Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys
Advanced Engineering Materials, EarlyView.An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin +12 more
wiley +1 more source
Boron Carbide Reinforced Alumina Composites
, 1991 The mechanical properties of alumina have been successfully improved by adding isolated boron carbide particles of two different shapes. a KIc of 7.26±0.20 MPa·m1/2 for alumina-boron carbide whiskerlike composites and of 5.27±0.12 MPa·m1/2 alumina-boron ...
Ownby, P. D., Liu, Jenq
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