Results 81 to 90 of about 689,152 (260)

Influence of TiC and TiN Ceramic Reinforcements on the Microstructure, Thermal Expansion Behavior, and Tensile Properties of Invar 36 Manufactured by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This study examines Invar composites reinforced with titanium carbide (TiC) and titanium nitride (TiN) using laser powder bed fusion (LPBF). It presents the influence of reinforcements on microstructure, tensile properties, and thermal expansion. Results show that TiC effectively strengthens Invar while maintaining low thermal expansion, whereas TiN ...
Ayodeji Nathaniel Oyedeji, Natasha Sacks, Johannes Pötschke, Björn Matthey   +3 more
wiley   +1 more source

Gamma Rays and Gravitational Waves

, 2019
International audienceThe first multimessenger observation of a neutron star merger was independently detected in gamma-rays by Fermi-GBM and INTEGRAL SPI-ACS and gravitational waves by Advanced LIGO and Advanced Virgo.
Harding, A., Christensen, N., Hartmann, D., Cenko, S.B., Schlieder, J., Mcenery, J., Stamerra, A., Tomsick, J., Wadiasingh, Z., Barthelmy, S., Hui, C.M., Burns, E., Zoglauer, A., Zhang, B., Schussler, F., Kierans, C., Ray, P., Kerr, M., Boggs, S., Patricelli, B., Perkins, J., Wilson-Hodge, C., Ansoldi, S., Younes, G., Zhu, S., Joens, A., Fryer, C., Goldstein, A., Kanbach, G., Racusin, J., Schoorlemmer, H.   +30 more
core   +2 more sources

Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning

Advanced Engineering Materials, EarlyView.
The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley   +1 more source

Generation of polarization-tunable hybrid cylindrical vector $\gamma$ rays from rotating electron beams

High Power Laser Science and Engineering
Cylindrical vector (CV) $\gamma$ rays can introduce spatially structured polarization as a new degree of freedom for fundamental research and practical applications. However, their generation and control remain largely unexplored.
Si-Man Liu, Yue Cao, Kun Xue, Li-Xiang Hu, Xin-Yu Liu, Xin-Yan Li, Chao-Zhi Li, Xin-Rong Xu, Ke Liu, Wei-Quan Wang, De-Bin Zou, Yan Yin, Jian-Xing Li, Tong-Pu Yu   +13 more
doaj   +1 more source

Identification of Gamma Spectrum Decayed by 238Pu as a Low Energy Photon Source

Journal of Isotopes, 2017
The gamma spectrum of 238Pu low energy photon source which was used for X-ray fluorescence analysis was analyzed by using P-type coaxial HPGe detector.
XU Xu;LIU Jia-qiang;LU Jing-bin;LIU Yu-min;MA Ke-yan;YANG Dong;LIU Yun-zuo
doaj   +1 more source

Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System

Advanced Engineering Materials, EarlyView.
Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner, Anna Sophie Jelinek, Velislava Terziyska, Peter Wagatha, Wolfram Knabl, Christian Mitterer, Helmut Clemens, David Holec   +7 more
wiley   +1 more source

Principal components analysis of extensive air showers applied to the identification of cosmic TeV gamma-rays [PDF]

, 2004
© 2004. The American Astronomical Society. All rights reserved. This work is supported in part by Spanish Government grants for the research projects BFM2003-04147-C02 and FTN2003-08337-C04-04.We apply a principal components analysis (PCA) to the ...
Gómez Gómez, José María, Retamosa Granado, Joaquín, Faleiro, E., Muñoz Muñoz, Laura, Relaño Pérez, Armando, Muñoz, L.   +5 more
core   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Impact of the Process Atmosphere During Hot Isostatic Pressing on the Near‐Surface Composition of an Additively Manufactured Austenitic High‐Interstitial Steel

Advanced Engineering Materials, EarlyView.
A high interstital austenitic steel is additively manufactured and postdensified by HIP to eliminate gas porosity. Thereby, the loss of N and Mn in Ar HIP atmosphere is investigated. Further, HIP using N2 atmosphere is investigated which led to excessive nitride formation.
F. Großwendt, J. Hahn, J. Kimm, S. Weber, J. Lentz   +4 more
wiley   +1 more source

Genetic Consequences of Acute/Chronic Gamma and Carbon Ion Irradiation of Arabidopsis thaliana

Frontiers in Plant Science, 2020
Gamma rays are the most frequently used ionizing radiation in plant mutagenesis; however, few studies are available on the characteristics of mutations at a genome-wide level.
Yoshihiro Hase, Katsuya Satoh, Hajime Seito, Yutaka Oono   +3 more
doaj   +1 more source