Results 121 to 130 of about 197,000 (305)

Arc jet diagnostics tests [PDF]

Two objectives were addressed during a 10 week 1988 NASA/ASEE summer faculty fellowship at the Johnson Space Center Atmospheric Reentry Materials Structures Evaluation Facility (ARMSEF).
Willey, Ronald J.
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Effects of silicon doping on low-friction and high-hardness diamond-like carbon coating via filtered cathodic vacuum arc deposition. [PDF]

Sci Rep, 2021
Kim JI, Jang YJ, Kim J, Kim J.
europepmc   +1 more source

Hardness and Microstructure of Binary and Ternary Nitinol Compounds [PDF]

The hardness and microstructure of twenty-six binary and ternary Nitinol compounds (Ni-Ti, Ni-Ti- Ta, Ni-Ti-Hf, and Ni-Ti-Zr) were studied. A small (50g) button of each compound was produced by vacuum arc melting (VAM).
Stanford, Malcolm K.
core   +1 more source

Vacuum arc plasma thrusters with inductive energy storage driver [PDF]

, 2004
An apparatus for producing a vacuum arc plasma source device using a low mass, compact inductive energy storage circuit powered by a low voltage DC supply acts as a vacuum arc plasma thruster.
Au, Michael Y., Gerhan, Andrew N., Krishnan, Mahadevan, Schein, Jochen, Woo, Robyn L.   +4 more
core   +1 more source

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

Multilayer WNbN/WNbC, WN/WC and NbN/NbC Coatings: Vacuum-Arc Deposition Strategy and Microstructure Assessment

East European Journal of Physics
Reactive gases such as nitrogen, oxygen, and carbon-based gases (e.g., acetylene) are introduced into the generated plasma flow to create coatings with chemical compounds including nitrides, oxides, and carbides. By managing the rate of gas addition, the
O.V. Maksakova, V.M. Beresnev, S.V. Lytovchenko, D.V. Horokh, B.O. Mazilin, I.О. Afanasieva, M. Čaplovičova, Martin Sahul, V.A. Stolbovoy   +8 more
doaj   +1 more source

A preliminary mechanical property and stress corrosion evaluation of VIM-VAR work strengthened and direct aged Inconel 718 bar material [PDF]

This report presents a preliminary mechanical property and stress corrosion evaluation of double melted (vacuum induction melted (VIM), and vacuum arc remelted (VAR)), solution treated, work strengthened and direct aged Inconel 718 alloy bar (5.50 in ...
Montano, J. W.
core   +1 more source

Anti-corrosion ceramic coatings on the surface of Nd-Fe-B repelling magnets [PDF]

, 2019
The results of vacuum-arc deposition of thin ZrO₂coatings to protect the surface of Nd-Fe-B permanent magnets used as repelling devices in orthodontics are presented.
Baturin, A. A., Garkusha, I. E., Gnidenko, Yu. P., Misiruk, I. O., Nikolaychuk, G. P., Pyvovar, N. V., Romaniuk, S. P., Skoblo, T. S., Starikov, V. V., Taran, A. V., Taran, V. S., Timoshenko, O. I.   +11 more
core   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source