Results 81 to 90 of about 846,677 (301)

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

4D Electrical Resistivity Imaging of Stress Perturbations Induced During High‐Pressure Shear Stimulation Tests

Geophysical Research Letters
Fluid flow through fractured media is typically governed by the distribution of fracture apertures, which are in turn governed by stress. Consequently, understanding subsurface stress is critical for understanding and predicting subsurface fluid flow ...
T. C. Johnson, J. Burghardt, C. Strickland, D. Sirota, V. Vermeul, H. Knox, P. Schwering, D. Blankenship, T. Kneafsey, the EGS Collab Team   +9 more
doaj   +1 more source

Morphological evolution and migration behavior of silver thin films on flexible substrates during thermal cycle testing

Advances in Mechanical Engineering, 2018
To understand morphological evolution and migration behavior caused by stress migration and thermal fatigue of silver thin films on flexible substrates, bending tests were conducted with different bending angles for two types of thermal tests ...
Quan Sun, Yebo Lu, Xiaobin Xu, Fengli Huang, Chengli Tang   +4 more
doaj   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Impact of stress-induced precipitate variant selection on anisotropic electrical properties of piezoceramics

Nature Communications
Precipitation hardening has been recently validated as a new mechanism for domain wall pinning and mechanical loss reduction in piezoelectrics. While anisometric precipitates have high pinning strengths, there is limited knowledge about the electrical ...
Changhao Zhao, Andreja Benčan, Matthias Bohnen, Fangping Zhuo, Xiaolong Ma, Goran Dražić, Ralf Müller, Shengtao Li, Jurij Koruza, Jürgen Rödel   +9 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Partial Discharge Inception Voltage Monitoring of Enameled Wires under Thermal Stress over Time

Energies
Electrical insulation is a critical component in electrical machines. The performance of the insulation system can be adversely affected by operating conditions that induce aging. Assessing the impact of environmental stresses is essential for predicting
Ishtiaq Khan, Francesco Guastavino, Laura Della Giovanna, Eugenia Torello   +3 more
doaj   +1 more source

Modeling and electrical-resistance feedback control of SMA actuators adapting to load disturbance

Nihon Kikai Gakkai ronbunshu, 2017
Ti-Ni based Shape Memory Alloy (SMA) actuators have been used for robots because of their high power-to-weight ratios, easiness of simple ON-OFF driving, and flexibility.
Koki KUDO, Hiroyuki HARADA
doaj   +1 more source

Contribution of Kaon component in viscosity and conductivity of hadronic medium

, 2018
The two-point correlation functions of kaonic viscous stress tensors and electro-magnetic currents have been calculated respectively to estimate the contributions of the strange sector in the shear viscosity and electrical conductivity of hadronic medium.
Alam, Jan-e, Ghosh, Sabyasachi, Ghosh, Snigdha, Rahaman, Mahfuzur, Sarkar, Sourav   +4 more
core   +2 more sources

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source