Results 31 to 40 of about 19,927 (215)

Performance evaluation of the Boron Coated Straws detector with Geant4 [PDF]

, 2019
The last decade has witnessed the development of several alternative neutron detector technologies, as a consequence of upcoming neutron sources and upgrades, as well the world-wide shortage of $^3$He.
Hall-Wilton, R. J., Kanaki, K., Klausz, M., Zagyvai, P.   +3 more
core   +2 more sources

Impact of B4C reinforcement on the microstructure, wear, hardness, corrosion behavior, and radiation shielding properties of Al-40Sm2O3 hybrid composites

Nuclear Engineering and Technology
This study investigates the production and properties of hybrid Al-based composites reinforced with Sm2O3 and B4C. Al-40Sm2O3 powders were milled using vibratory grinding, and B4C was added in varying ratios of 1, 5, 9, 13, and 15 wt%. X-ray diffraction (
Seyit Çağlar
doaj   +1 more source

Investigation on mechanical properties of aluminium 7075 - boron carbide - coconut shell fl y ash reinforced hybrid metal matrix composites [PDF]

China Foundry, 2018
The present research work reports the fabrication and evaluation of the mechanical properties of hybrid aluminium matrix composites (HAMC). Aluminium 7075 (Al7075) alloy was reinforced with particles of boron carbide (B4C) and coconut shell fl y ash ...
*Balasubramani Subramaniam1, Balaji Natarajan2, Balasubramanian Kaliyaperumal2   +2 more
doaj   +1 more source

Atomic structure and vibrational properties of icosahedral B$_4$C boron carbide

, 1999
The atomic structure of icosahedral B$_4$C boron carbide is determined by comparing existing infra-red absorption and Raman diffusion measurements with the predictions of accurate {\it ab initio} lattice-dynamical calculations performed for different ...
A. C. Larson, A. Dal Corso, B. Morosin, B. Morosin, D. R. Tallant, G. H. Kwei, H. Stein, H. T. Hall, H. Werheit, I. J. McColm, I. Jiménez, J. Donohue, J. M. Besson, J. M. Besson, N. Troullier, N. Vast, N. Vast, P. Brüesch, P. Favia, P. Giannozzi, R. J. Nelmes, R. J. Nelmes, R. Lazzari, S. Baroni, S. Baroni, S. Han, U. Kuhlmann   +26 more
core   +4 more sources

Design of B,N Co‐Doped Carbon Spheres for Highly Effective Back Interface Engineering in Planar Carbon‐Based Perovskite Solar Cells

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The energy level mismatch of the perovskite/carbon back interface is decreased remarkably by using B, N co‐doped carbon sphere electrode in C‐PSCs, leading to effective charge carrier separation, extraction, and transport at the back interface. Combined with further buried modification using AMPA, the power conversion efficiency of the C‐PSCs is up to ...
Yujie Gao, Chang Xu, Xueze Liu, Chang Zhao, Wanran Zhang, Xuan Li, Yanli Zeng, Mingxing Wu   +7 more
wiley   +1 more source

Measurements and Monte-Carlo simulations of the particle self-shielding effect of B4C grains in neutron shielding concrete

, 2018
A combined measurement and Monte-Carlo simulation study was carried out in order to characterize the particle self-shielding effect of B4C grains in neutron shielding concrete. Several batches of a specialized neutron shielding concrete, with varying B4C
Bentley, P. M., Cooper-Jensen, C. P., DiJulio, D. D., Kazi, S., Llamas-Jansa, I.   +4 more
core   +1 more source

Advanced Functional Materials for Marine Energy Utilization

Interdisciplinary Materials, EarlyView.
Marine renewable energy is an important future clean energy supply. We construct and sort out the material system for marine energy capture and conversion, transmission, storage, and utilization for the first time. ABSTRACT Several features of marine energy, including large reserves, sustainable utilization, environmental friendliness, make it a ...
Qiang Yu, Peipei Ge, Fazhou Wang, Shichao Bi, Bo Tang, Ion Tiginyanu, Kenneth I. Ozoemena, Xiao‐Yu Yang   +7 more
wiley   +1 more source

Suppression of intrinsic neutron background in the Multi-Grid detector

, 2018
One of the key requirements for neutron scattering instruments is the Signal-to-Background ratio (SBR). This is as well a design driving requirement for many instruments at the European Spallation Source (ESS), which aspires to be the brightest neutron ...
Dian, E., Hall-Wilton, R., Kanaki, K., Khaplanov, A., Kittelmann, T., Zagyvai, P.   +5 more
core   +1 more source

Interface Phonon Transmission Behaviors and Their Resultant Influence on Thermal Transport in Cu/Diamond Composites

Materials Genome Engineering Advances, EarlyView.
Cu/diamond heat spreaders are limited by low thermal boundary conductance. Using DFT + DMM, we identify the phonon‐transport factors governing TBC and show that optical–phonon contributions and branch conversion are essential. High‐k $k$ carbides (B4C, WC) and residual B and Cr improve interfacial heat transfer, enabling robust performance versus ...
Qinghe Zheng, William Yi Wang, Leandro Bolzoni, Fei Yang   +3 more
wiley   +1 more source

The effect of hydrogen on B4C coatings fabrication in inductively coupled plasma torch

AIP Advances, 2018
Boron carbide (B4C) coatings are prepared by an RF inductively coupled plasma (ICP) torch with different amounts of hydrogen introduced into the sheath gas.
Q. J. Guo, P. Zhao, L. Li, Q. J. Zhou, G. H. Ni, Y. D. Meng   +5 more
doaj   +1 more source