Results 61 to 70 of about 1,097,644 (286)

Turning Nd‐Fe‐B Swarf Into High‐Value Bulk Feedstocks via Sustainable Hydrogen Plasma: From Rare‐Earth Oxides to Metals and Hydrides

Advanced Materials, EarlyView.
Oxidized Nd‐Fe‐B magnet swarf is transformed into valuable bulk feedstock through a single‐step hydrogen plasma process. The reaction converts complex rare‐earth‐containing waste into separated metallic, oxide, and hydride fractions without acid leaching.
Naritai Chimed, Oliver Diehl, Ömer K. Büyükuslu, J. Manoj Prabhakar, Dennis Klapproth, Patricia Jovičević‐Klug, Jürgen Gassmann, Dierk Raabe, Tim M. Schwarz, Matic Jovičević‐Klug   +9 more
wiley   +1 more source

Ionic Liquid (IL) Compatibilization of Macropore‐Infused Nanocomposite Emulsion Thermosets (MINETs) for Structural Ion Transport

Advanced Materials Interfaces, EarlyView.
Macropore‐infused nanocomposite emulsion thermosets (MINETs) offer tunable multifunctionality due to their incorporation of structural resin, functional nanoparticles, and working fluid stabilized by surfactant. Here we show that if ionic liquid working fluids are introduced, structural capacitive (conductive particles) or separator (insulating ...
Bryan Llumiquinga, Iris You, Nare Cho, Madhuri Deb, Jordan C. Pierce, Kevin M. Miller, Jonathan P. Singer   +6 more
wiley   +1 more source

A glance into the boundary lubrication mechanism of PVA hydrogel after the reduction of interstitial fluid pressurization

Friction
The present study introduces a tribological comparison of five polyvinyl alcohol (PVA) hydrogel specimens with different physiological properties and possible candidate materials for cartilage replacement.
Daniel Němeček, David Nečas, Hironori Shinmori, Seido Yarimitsu, Max Marian, Martin Vrbka, Yoshinori Sawae, Ivan Křupka, Martin Hartl   +8 more
doaj   +1 more source

Reducing Interfacial Separation Force in High‐Speed Constrained‐Surface Projection Stereolithography Using a Dual‐Modulus Silicone Release Film

Advanced Materials Interfaces, EarlyView.
A dual‐modulus silicone release film creates distributed stress concentrations at high‐/low‐modulus boundaries, triggering multi‐site crack initiation and rapid interfacial detachment. The architecture lowers the peak separation force by 97.6%, shortens detachment time, and enables stable continuous projection stereolithography at 720 mm h−1, offering ...
Xiaogang Li, Xiaoqing Kang, Hong Xiao, Yugang Duan   +3 more
wiley   +1 more source

Experimental and Theoretical Investigation for Shaft Journal Bearing Lubrication Performance [PDF]

Port Said Engineering Research Journal
Hydrodynamic lubrication is definitely one of the foremost factors upon which the load carrying capacity within journal bearing mainly rely. Therefore, maintaining journal bearing lubrication away from boundary and transient lubrication regions is so ...
Nader Abdul Rahman, Ahmed Taha, Amman Ali, Nour Marey   +3 more
doaj   +1 more source

Rubber‐Glass‐Crystal Triple Phase Transition in Polyacrylamide Hydrogels and Environment‐Adaptive Shape Memory Effect

Advanced Materials Interfaces, EarlyView.
By analyzing the thermal‐mechanical properties and molecular‐scale interactions in polyacrylamide (PAAM) hydrogels, this research demonstrates a rubber‐glass‐crystal phase transition under the combined stimuli of temperature and moisture. Because of these hybrid phase transitions, PAAM hydrogels exhibit shape memory behavior in thermal and moist ...
Shuai Xu, Han Li, Wenjing Lu, Yiheng Xue, Jincheng Lei, Linchun He, Yu Chai, Zishun Liu   +7 more
wiley   +1 more source

Improving wear resistance of helicopter gear under extreme lubrication conditions through LSPwc surface modification

Journal of Materials Research and Technology
A sudden lubrication failure in the helicopter transmission system will cause severe wear and mechanical breakdown of gear components within a short period of time, posing a significant threat to flight safety.
Fei Yang, Ping Liu, Hongwei Yang, Liucheng Zhou, Xinlei Pan, Yuanyang He, Mingdong Zhu, Chuan Liu, Yu Tan   +8 more
doaj   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Experimental and numerical investigation of air layer drag reduction on a flat plate

Alexandria Engineering Journal
Reduction of Ship fossil fuel oil burning emissions has a significant impact to contain the global warming. Saving power by reducing ship resistance could basically reduce fossil fuel emissions.
Salaheldin A. Mohamad, M. Youssef, Mohamed Bennaya, Khaled Elsherbiny   +3 more
doaj   +1 more source

Boundary lubrication and maxillofacial prosthetic polydimethylsiloxanes

Biomaterials, 1991
Polydimethylsiloxanes exhibit hydrophobic behaviour and poor wettability. These features impose some problems with the clinical performance of the material when used for the construction of intraoral and extraoral facial prostheses. Surface active agents were added to modify the surface energy of the polydimethylsiloxane and contact angle measurements ...
POLYZOIS, GL, WINTER, RW, STAFFORD, GD
openaire   +3 more sources