Results 31 to 40 of about 83,965 (264)

Feasibility Study on Production of High-Purity Rhenium-185 by Nuclear Transmutation of Natural Tantalum

Journal of Nuclear Engineering, 2023
Rhenium-186 (Re-186) has attracted attention as a medical isotope. The feasibility of producing Re-185, the raw material for Re-186, using a fast reactor was evaluated using a continuous energy Monte Carlo code.
Yuki Tanoue, Tsugio Yokoyama, Masaki Ozawa   +2 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Simulation of flow field in low-resistance Venturi vibrating wire grid dust removal system

矿业科学学报
The distribution of the flow field in the dust collector significantly affects its performance. The uniform distribution of the flow field is conducive to the dust reduction of the system, thus it requires the use of simulation software to simulate and ...
ZHOU Ziyi, CHEN Zuyun, LIU Lixin, ZHONG Fangquan, GUO Yumin, ZHANG Jimin, LUO Binglin, LAI Zhaoqi   +7 more
doaj   +1 more source

Influence of microstructure and applied force on the crack initiation and propagation of tungsten electrodes for spot welding

Nihon Kikai Gakkai ronbunshu, 2018
In recent years, the electrical wiring works of automobiles and home electronics have become highly complicated, and a spot welding is being used as the interconnecting joining method.
Akira KURUMADA, Takamichi ONO, Goroh ITOH, Shingo MUKAE   +3 more
doaj   +1 more source

Thermodynamic Properties and Equation of State for Tungsten

Crystals, 2023
A high-temperature equation of state for tungsten was constructed in this study using experimental data on its thermodynamic properties, thermal expansion, compressibility, and bulk compression modulus. The totality of experimental data were optimized by
Nikolay V. Kozyrev, Vladimir V. Gordeev
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Analysis of Shielding Performance of Radiation-Shielding Materials According to Particle Size and Clustering Effects

Applied Sciences, 2021
In the field of medical radiation shielding, there is an extensive body of research on process technologies for ecofriendly shielding materials that could replace lead.
Seon-Chil Kim
doaj   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Heterogenous microstructure and texture evolution of K-doped tungsten thick plate during hot-rolling processing

Nuclear Materials and Energy
The fabrication and processing of large bulk materials such as potassium (K)-doped tungsten pose significant technical challenges in terms of sintering and forming processes.
Ping Ren, Qinglin Liu, Jiupeng Song, Binyou Yan, Mengxia Liang, Shaowei Dai, Fan Feng, Youyun Lian, Jianbao Wang, Xiang Liu   +9 more
doaj   +1 more source

OXIDATION OF TUNGSTEN AND TUNGSTEN BASED ALLOYS [PDF]

, 1961
Abstract : The results of studies related to the oxidation of W and its alloys are studied. The pressure of WO3 polymers over WO2 was measured in a W Knudsen cell and found to agree with measurements in a Pt cell. Literature data for WO2 WO3 were combined with vapor pressures determined in this project to give thermodynamic values for W18O49 and W20O58.
Blackburn, P.E., Andrew, K.F., Gulbransen, E.A., Brassart, F.A.   +3 more
openaire   +2 more sources