Results 61 to 70 of about 6,963 (290)

eVTOL Magnetic Seal Desigjn

, 2023
Seal team 21 was tasked by Magseal to design a magnetic bearing seal for the emerging eVTOL (Electric Vertical Takeoff Landing) market. Located in Warren, RI, Magseal is one of two unique manufactures of magnetic seals for the aerospace industry ...
Lewin, Sam, Asso, Nahor, Albanese, Jake, Petrozzi, Stephen   +3 more
core  

Natural Biomaterials for Osteochondral Repair: From Source to Strategy

Advanced Healthcare Materials, EarlyView.
Biological origin‐guided overview of natural biomaterials and therapeutic strategies for osteochondral tissue engineering. The circular diagram categorizes representative materials and strategies into plant/algae‐derived, microbial‐derived, animal‐derived, and human‐derived sources, centered on an osteochondral defect repair model.
Hengyu Liu, Hanyang Zhang, Wenbo Yang, Hao Chen, Jincheng Wang, Fei Chang   +5 more
wiley   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Thermal balance analysis and optimization of a novel magnetic mechanical seal

Case Studies in Thermal Engineering
To mitigate seal failure caused by excessive thermal deformation leading to the failure of magnetic mechanical seals, this paper proposes a novel magnetic seal structure, a single-stage stepped structure in the rotating ring.
Haozhe Liu, Decai Li, Can Huang, Lifen Liu, Xingwei Sa, Jinqi Wu   +5 more
doaj   +1 more source

Study on the Water Proof Seal for Underwater Robot Using MR Fluid

, 2011
Water proofing is an obvious problem in developing successful underwater robots. In previous research, most underwater robots have used a mechanical seal for water proofing.
Dong Won Yun, Soo Hyun Kim, Kyung Jinho
core   +1 more source

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Magnetophoretic Motion of Micron-Sized Magnetic Particles in the Working Gap of a Magnetic Fluid Seal

Journal of Machine Engineering
The operational experience of bearing units in technological equipment has been analyzed. The use of magnetic fluid seals to enhance the reliability and failure-free operation of equipment has been justified.
Alexander Vladimirovich Radionov, Alexander Dmitrievich Podoltsev, Grzegorz Peczkis, Wu Jiming   +3 more
doaj   +1 more source

A rotary magneto-rheological torque converter for tension regulation

Advances in Mechanical Engineering, 2018
In this article, a drum type of transmission device has been developed, which is a double-layer cylinder structure. The working clearance between the inner and the external layers of the device has been filled with intelligent material named magneto ...
Li Gang, Du Cheng-bin, Feng Yong
doaj   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

Advanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti, Carla Boix‐Constant, Iván Gómez‐Muñoz, Diego López‐Alcalá, Sergio Revuelta, Marco Ballabio, Vasileios Balos, José J. Baldoví, Enrique Cánovas, Josep Canet‐Ferrer, Guillermo Mínguez Espallargas, Samuel Mañas‐Valero, Eugenio Coronado   +12 more
wiley   +1 more source

Effect of diffusion of magnetic particles on the parameters of the magnetic fluid seal: A numerical simulation [PDF]

, 2014
In the paper, a motion of magnetic nanoparticles in a high gradient magnetic field and its correlation with the characteristics of the magnetic fluid seal are numerically studied.
Krakov, M. S., Nikiforov, I. V.
core