Results 71 to 80 of about 2,004 (263)

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Design of Planar Transformer with DC Bus Converter for Airplane

Kongzhi Yu Xinxi Jishu, 2017
In consideration of the fact that 4 kW DC bus converter on airplane has large output current and the secondary winding of its transformer needs in parallel to bear high current, it designed a planner transformer.
XUE Kaichang, ZHONG Junjie, LONG Jiang
doaj  

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

An Isolated Single-Stage Voltage Regulator With High Step-Down Conversion Ratio for Data Center Application

IEEE Open Journal of Industry Applications
As data center power architectures evolve from 12 V to 48 V to accommodate escalating power densities, designing high-efficiency, high-step-down voltage regulators modules with high current capability becomes a critical challenge.
Tao Zhang, Xiaoying Chen, Hongbiao Xie, Yizhan Zhuang, Xingkui Mao, Yiming Zhang   +5 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Optimized Design of Side-Connected Rectified Planar Transformer for Data Center DCX Modules

Energies
The rapid advancement of artificial intelligence (AI) has continuously boosted the computing power of data centers, imposing stringent requirements on the efficiency and power density of low-voltage high-current power modules.
Yang Cao, Bin Wang, Zhanshan Zhu, Min Xu, David Wei Zhang   +4 more
doaj   +1 more source

Assessment of Planar Transmission Line with Stub for Measuring Water Content in Power Transformer Oil [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This study investigates the effectiveness of employing Planar Transmission Lines (PTL) with stubs to determine the water content in transformer oils. The research aims to elucidate how transmission responses along the line can provide valuable patterns ...
Daniel A. B. Fonseca, Luís G. da S. Costa, Wesley M. Cantarino, Ulysses R. C. Vitor   +3 more
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source