Results 41 to 50 of about 2,311,305 (201)

Synthesis of Ladder and Flexible Polysulfonimides Directly From Anionic Monomers: Investigating Structure–Property Convergence in Succinonitrile–Polymer Electrolyte Blends

Angewandte Chemie, EarlyView.
Direct synthesis of sulfonimide‐based polymers of intrinsic microporosity enables comparison with compositionally similar flexible analogs. Incorporation of a common pore‐filling transport medium drives these fundamentally different polymer architectures toward similar bulk conductivity and mechanical properties while revealing distinct microscopic ion‐
Abraham Herzog‐Arbeitman, Pablo Leon, Benedikt S. Schreib, KyuJung Jun, Jurgis Ruza, Vanesa Munoz Perales, Yang Shao‐Horn, Rafael Gomez‐Bombarelli, Jeremiah A. Johnson   +8 more
wiley   +2 more sources

Experimental investigation of productivity and surface integrity features in trim cut WEDM operation of hybrid metal matrix composite

International Journal of Lightweight Materials and Manufacture
Present study is focused on optimization of WEDM process parameters for increased productivity and improved surface quality of the machined surface of hybrid composite [Al6061 (90 %), SiC (2.5 %) and TiB2 (7.5 %)] by utilizing the trim cut strategy ...
Nilesh Kumar, Jatinder Kumar
doaj   +1 more source

Sacrificial‐Layer‐Assisted Heat‐Affected‐Zone Suppression in Laser Patterning of PET for High‐Performance Flexible Devices

Advanced Functional Materials, EarlyView.
A removable sacrificial polymer layer engineers the thermal boundary condition during nanosecond laser ablation of PET, suppressing heat‐affected‐zone formation without relying on costly ultrafast lasers. This strategy enables deep, high‐aspect‐ratio trenches with no detectable heat‐affected zone, templating silver‐filled mesh electrodes with record ...
Mehdi Zarei, Mirza Sahaluddin, Mostafa Bedewy, Paul W. Leu   +3 more
wiley   +1 more source

Influence of window layer thickness on double layer antireflection coating for triple junction solar cells

, 2011
The optimization of a SiO2/TiO2, SiO2/ZnS double layer antireflection coating(ARC) on Ga0.5In0.5P/In0.02Ga0.98As/Ge solar cells for terrestrial application is discussed. The Al0.5In0.5P window layer thickness is also taken into consideration. It is shown
Wang, L.(ljwang09@semi.ac.cn), Yan Zhu, Shesong Huang, Ying Yu, Feng Zhan, Shaoqing Liu, Huang, Shesong, Haiqiao Ni, Niu, Zhichuan, Wang, Lijuan, Lijuan Wang, Zhan, Feng, Liu, Shaoqing, Zhichuan Niu, Yu, Ying, Ni, Haiqiao, Zhu, Yan   +16 more
core   +1 more source

Parameter optimization and electrochemical passivation study for recast-layer-free microhole machining on DD9 superalloy in hybrid EDM-ECM process

Journal of Materials Research and Technology
This study investigates the hybrid electro-discharge and electrochemical machining (EDM-ECM) process for fabricating microholes on DD9 superalloy, focusing on the effects of parameters and electrochemical passivation on recast layer removal.
Yulan Zhu, Nan Zhao, Wei Liang, Tianlong Li, Qifeng Tan, Hao Tong, Jinqian Zhao, Chaojiang Li, Guodong Liu   +8 more
doaj   +1 more source

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

Advanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano, Lorenzo Ravelli, Martina Nardi, Ruowen Tu, Elena Bellini, Valerio Isa, Carlo Filippeschi, Roberta Finazzi, Luca Ceseracciu, Niloofar Paknezhad, Vincenzo Scribano, Paolo Galli, Silvia Lavorano, Simone Montano, Barbara Mazzolai, Marco Contardi, Pietro Cataldi, Athanassia Athanassiou   +17 more
wiley   +1 more source

Analysis of the Effects of Water Temperature on Water-Assisted Laser Trepanning in Superalloys

Metals
The water-assisted laser trepanning method has been proven to improve the quality of laser drilling; however, the effect of water temperature on this process is currently unclear.
Kaibo Xia, Liang Wang, Mingchao Li, Huayu Yang   +3 more
doaj   +1 more source

Limits to the Hall Effect and Other Nonreciprocal Effects in Three‐Dimensional Metamaterials

Advanced Materials, EarlyView.
Comprehensive and fundamental bounds on nonreciprocal effects in three‐dimensional metamaterials are derived. They reveal that the effective Hall mobility cannot exceed the largest constituent mobility, that, under certain conditions, the Verdet constant cannot be enhanced, and that, for constituents with Hall coefficients of the same sign, the largest
Christian Kern, Graeme W. Milton
wiley   +1 more source

Processing Characteristics of Micro Electrical Discharge Machining for Surface Modification of TiNi Shape Memory Alloys Using a TiC Powder Dielectric

Micromachines, 2020
Titanium-nickel shape memory alloy (SMA) has good biomedical application value as an implant. Alloy corrosion will promote the release of toxic nickel ions and cause allergies and poisoning of cells and tissues. With this background, surface modification
Ziliang Zhu, Dengji Guo, Jiao Xu, Jianjun Lin, Jianguo Lei, Bin Xu, Xiaoyu Wu, Xujin Wang   +7 more
doaj   +1 more source

Experimental Study on Coaxial Waterjet-Assisted Laser Scanning Machining of Nickel-Based Special Alloy

Micromachines, 2023
The problems of the recast layer, oxide layer, and heat-affected zone (HAZ) in conventional laser machining seriously impact material properties. Coaxial waterjet-assisted laser scanning machining (CWALSM) can reduce the conduction and accumulation of ...
Jiajia Wang, Bin Wang, Chenhu Yuan, Aibing Yu, Wenwu Zhang, Liyuan Sheng   +5 more
doaj   +1 more source