Results 41 to 50 of about 145,451 (264)

Experimental Study on Gas Flow and Aerosol Deposition Characteristics in Micro-channel

Yuanzineng kexue jishu, 2023
Aerosol retention occurs when it penetrates through micro-leakage paths within the containment after nuclear reactor accidents. Aerosol particles are deposited by mechanisms such as gravity sedimentation, Brownian diffusion, entrance effect, and ...
HU Peizheng;WANG Shanpu;TONG Lili*;CAO Xuewu
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

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

Advanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat, D. Anjaria, I. Woo, C. Bean, D. Texier, J. C. Stinville   +5 more
wiley   +1 more source

Design and Manufacturing Challenges in PEMFC Flow Fields—A Review

Energies
Proton exchange membrane fuel cells are a prime choice for substitute electricity producers. Membrane electrode assembly (MEA), bipolar electrodes, and current collectors belong to only a limited number of primary parts of the proton exchange membrane ...
Prithvi Raj Pedapati, Shankar Raman Dhanushkodi, Ramesh Kumar Chidambaram, Dawid Taler, Tomasz Sobota, Jan Taler   +5 more
doaj   +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

An Experimental Study on the Flow Boiling Heat Transfer Characteristics of Deionized Water Under Rotational Hypergravity

Aerospace
Flow boiling heat transfer in micro-channels under hypergravity conditions is a crucial research area for developing efficient cooling systems in aerospace applications.
Gen Li, Yiling Zhao, Xiaojie Zhang, Jianxun Xie, Xiande Fang   +4 more
doaj   +1 more source

Computational Study on the Effect of Paddle Number of Optical Micro-Rotors on the Mixing Performance

Journal of Fluid Science and Technology, 2007
The mixing performance of optical micro-rotors, which were invented as an active micromixer, is studied by the aid of CFD simulations. Our focus in this paper is on the effects of paddle number (3,4 and 5) of the rotors. Fluid torque acting on the rotors
Yoshifumi OGAMI, Thien X. DINH
doaj   +1 more source

Four-segmented design method and numerical simulation of LNG micro-channel vaporizer

You-qi chuyun, 2022
Micro-channel vaporizer has the advantages of high heat exchange efficiency, high pressure resistance and compact structure, and has broad application prospect as an LNG vaporizer.
Yan SHEN, Rui LIU, Zi WANG, Xiao XU, Zili WANG   +4 more
doaj   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Experimental Investigation of Al₂O₃ Nano-Powder-Mixed Dielectric in EDM-Assisted Micro-Milling

Micromachines
This paper investigates the use of Al2O3 nano-powder-stirred micro-EDM process for generating micro-channels. This study focuses on the effect of critical machining process parameters, such as capacitance levels and nano-powder concentration, on the ...
Sharad Yadav, Deepak Agarwal, Anuj Kumar Sharma, Rabesh Kumar Singh, Saurabh Chauhan, Shalini Mohanty   +5 more
doaj   +1 more source