Results 131 to 140 of about 108,193,042 (300)

A Cu2S/NiOOH Heterojunction Enables Highly Selective Ammonia‐to‐Nitrite Electrooxidation at Industrially Relevant Current Densities

Advanced Materials, EarlyView.
Cu2S/NiOOH heterojunction enables efficient ammonia electrooxidation coupled with hydrogen evolution. Interfacial electronic modulation of Ni sites promotes selective NH3‐to‐NO2− electrooxidation at high current density. In a membrane electrode assembly, Cu2S/NiOOH maintains over 90% Faradaic efficiency of nitrite at 800 mA cm−2, highlighting its ...
Ke Wang, Hongzhe Anna Xu, Xin Mao, Xuefei Wang, Min Zheng, Chun‐Chuan Kao, Limei Yang, Jiashu Wang, Boming Sun, Shokoofeh Varshooy, Aijun Du, Qi‐Long Zhu, Jian Liu, Zhenguo Huang   +13 more
wiley   +1 more source

Investigating the microstructure and mechanical properties in furnace brazing Ti–6Al–4V to 17-4 PH stainless steel dissimilar joint with BNi-2 filler metal

Journal of Advanced Joining Processes
Due to the distinct physical and metallurgical characteristics of titanium and steel, the welding of these two materials poses challenges and holds significant importance.
Amirreza Ardalani, Homam Naffakh-Moosavy
doaj   +1 more source

Programmable Carrier‐Free All‐Enzyme Beads for Modular Continuous‐Flow Biocatalysis

Advanced Materials, EarlyView.
Genetically encoded enzyme building blocks self‐assemble into monodisperse, carrier‐free protein beads via a droplet‐based formulation strategy. These programmable catalytic particles enable modular continuous‐flow biocatalysis, from single‐enzyme reactions to multi‐enzyme cascades and bead–bead coupled reactor systems.
Jennifer Kühne, Julian S. Hertel, André Delavault, Judith Felk, Martin Peng, Lara Reuber, Felix Ott, Kim Wanner, Marc F. Münker, Adrian Neukirch, Alexei Kiselev, Kersten S. Rabe, Christof M. Niemeyer   +12 more
wiley   +1 more source

The effect of aging conditions on hardness of 17-4 PH precipitation hardening stainless steel

, 2021
Jeklo z oznako 17-4 PH je izločevalno utrjevalno martenzitno nerjavno jeklo, ki vsebuje okoli 17 mas. % Cr, 4 mas. % Ni, 4 mas. % Cu in 0, 3 mas. % Nb.
Čoper, Erika
core  

Six-channel laser single-channel coaxial wire feeding: anisotropy study of component gradient material for 316L and 17-4 PH stainless steel

Journal of Materials Research and Technology
A martensitic 17-4 PH stainless steel wire was processed via additive manufacturing using a six-channel laser system. The wire was then replaced mid-process with an austenitic 316 L stainless steel wire to continue printing, ultimately resulting in the ...
Xianwen Yang, Ruidi Li, Fangda Xu, Jingren Zhi, Shengxing Zhi, Benyin Zhu, Tiechui Yuan   +6 more
doaj   +1 more source

Soft and Transient Bioelectronics Enabled by Polymer‐Free Ti3C2Tx MXene Hydrogels

Advanced Materials, EarlyView.
We present Ti3C2Tx MXene hydrogel (MXgel) bioelectronics, a soft, flexible, and fully transient platform for high‐fidelity neural recording and stimulation. MXgel bioelectronics exhibit exceptional electrical conductivities, low electrochemical impedances, and high charge injection capacities.
Raghav Garg, Franco A. Laimo, Stefano Ippolito, Prastuti Upadhyay, Spencer R. Averbeck, Dimitris Boufidis, Charles‐Antoine Assenmacher, Dayo O. Adewole, Sai Panigrahy, Bita Soltan Mohammadlou, Lucy Plant, Yuan Zhang, Andrew G. Richardson, Yury Gogotsi, D. Kacy Cullen, Flavia Vitale   +15 more
wiley   +1 more source

Investigations on productive 3D printing of 17–4 PH steel with layer thickness of 80 μm

Materials and Manufacturing Processes
Laser powder bed fusion (LPBF) technology faces adoption barriers due to low productivity. This studyinvestigates process parameter optimization for 17–4 PH stainless steel at 80 μm layer thickness toenhance productivity while maintaining density above 99.9%.
Petrášek, Šimon, Pathak, Sunil, Stránský, Ondřej, Hlavůňková, Lucie, Holesovsky, Frantisek, Jiang, Cho-Pei, Beránek, Libor   +6 more
openaire   +2 more sources

Fiber‐Format Flexible Linear Electrostatic Motors

Advanced Materials, EarlyView.
A flexible coaxial fibre‐format electrostatic motor enables backdrivable and reversible linear actuation with high force density and functionality under bending, offering a scalable actuation platform for soft and wearable robotics. ABSTRACT Linear motion is fundamental to robotics, yet existing solutions are either rigid electromagnetic motors or ...
Sylvain Schaller, Herbert Shea
wiley   +1 more source

Strong Fully Reprocessable Engineered Wood Composites

Advanced Materials, EarlyView.
Engineering a hyperbranched adhesive with complementary imine‐bond and hydrogen‐bond networks, combining it with wood particles to fabricate the wood composite (WP/HTP) under mild hot‐pressing conditions. The WP/HTP exhibits 100% mechanical strength recovery after three cycles of reprocessing, and the reprocessed modulus of rupture (MOR) and modulus of
Xilin Zhang, Zheng Liu, Zhezhe Zhou, Mark Lynch, Jianzhang Li, Paulomi Burey, Jingchao Li, Cheng Zhang, Qiang Gao, Pingan Song   +9 more
wiley   +1 more source

Comparison of Modulation-Assisted Machining Strategies for Achieving Chip Breakage When Turning 17-4 PH Stainless Steel

Journal of Manufacturing and Materials Processing
Chip morphology is an intrinsic characteristic of the machining process that determines the quality of the process. When machining low machinability materials, the chips formed are usually long, continuous, and difficult to break.
Ainhoa Robles, Asier Astarloa, Iñigo Llanos, Iker Mancisidor, Maria Helena Fernandes, Jokin Munoa   +5 more
doaj   +1 more source