Results 41 to 50 of about 19,897 (263)

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

MECHANISM ANALYSIS AND EXPERIMENTAL STUDY OF VACUUM ARC WELDING EQUIPMENT

Jixie qiangdu, 2017
There is no uniform standard for determining the parameters of the key factors in the process of vacuum arc brazing. The parameters of the vacuum arc welding equipment are determined by the experience.
MAO Jun, XIE ChunXue, XIE Miao, LIU ZhiXiang   +3 more
doaj  

Simulation of vacuum arc cathode spot movement between transverse magnetic field contacts

AIP Advances, 2021
Vacuum switches have been extensively used in the field of medium voltage. Carrying out relevant research on vacuum arc is particularly important for improving the performance and reliability of vacuum switches. The vacuum arc cathode spots provide metal
Hao Jing, Junfei Yang, Xianhai Pang, Shixin Xiu   +3 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

Distribution Characteristics of Inclusions in GH4742 Superalloy Ingot by Vacuum Arc Remelting [PDF]

Teshugang
A ϕ570 mm alloy ingot was utilized as the electrode for vacuum arc remelting， and a ϕ660 mm vacuum arc remelting ingot was prepared through the three stages of arc initiation， stabilized melting， and thermal capping. The melting process lasted a total of
Yang　Shulei, Wang　Xiwei, Tian　Qiang, Wang　Tiantian, Yang　Shufeng
doaj   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Modeling of CuCr contact vacuum arc with consideration of its components

AIP Advances, 2018
This paper involves the simulation of vacuum arc under composite (CuCr) contact. A three dimensional model is developed and we have considered the ionization process as well as recombination in the vacuum arc.
Jie Deng, Lijun Wang, Xiao Zhang, Ze Yang, Shenli Jia   +4 more
doaj   +1 more source

Investigation on vacuum arc characteristics and anode temperature of 16.7 Hz vacuum interruption [PDF]

AIP Advances
Low-frequency vacuum circuit breakers exhibit longer arcing durations during contact separation compared to power frequency currents, due to the lower frequency of the interrupted AC arc.
Jun Xiong, Haicheng Hong, Xihao Zhou, Junxiang Liu, Haibo Su, Jun Xiao, Xiaolong Huang, Shenli Jia   +7 more
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Full-scale simulation of high-current vacuum arc in vacuum interrupter under axial magnetic field

AIP Advances
Most existing studies on vacuum arcs confine the arc to the space directly between the electrodes. Contacts are often slotted to facilitate magnetic field control of the arc, thereby artificially restricting the arc-burning zone and overlooking the ...
Yueran Liu, Shuangwei Zhao, Xiaolong Huang, Qiang Zhang, Yanmin Liu, Shenli Jia   +5 more
doaj   +1 more source