Results 61 to 70 of about 599,758 (310)

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Study on Pantograph–Rigid Catenary Separation Through Simulation Experiments and the Dynamic Characteristics of DC Arcs

Machines
The pantograph–catenary system is a critical component of the traction power supply network. Due to hard points on the overhead contact line and vibrations of the pantograph, pantograph–catenary separation may occur, leading to offline DC arc events.
Zhaofeng Gong, Chang Liu, Shuai Xu, Guangxiao Wang, Wenzheng Liu, Gang Zhang   +5 more
doaj   +1 more source

Arc Voltage and Current Characteristics in Low-Voltage Direct Current

Energies, 2018
Recently, Low-Voltage DC (direct current) distribution systems have received high lights according to the expansion of DC generations and DC loads such as photovoltaics (PV) generations, electric vehicles (EVs), light emitting diodes (LEDs), computers ...
Wooho Kim, Yong-Jung Kim, Hyosung Kim
doaj   +1 more source

Effects of arcing due to spacecraft charging on spacecraft survival [PDF]

A quantitative assessment of the hazard associated with spacecraft charging and arcing on spacecraft systems is presented. A literature survey on arc discharge thresholds and characteristics was done and gaps in the data and requirements for additional ...
Ellen, J. M., Jr., Inouye, G. T., Rosen, A., Sanders, N. L.   +3 more
core   +1 more source

The House of Representatives: “Grand Depository of the Democratic Principle”? [PDF]

, 1952
The solar simulator is the key facility for indoor research of solar PV cells, solar heat collectors, space craft and CSP systems. This paper classifies the four types of solar simulators based on their characteristics and their design objects: space ...
Laumert, Björn, Wang, Wujun
core   +2 more sources

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source

Development of a stable ultraviolet source and techniques for accurate radiometry Annual summary report, 1 Jan. - 31 Dec. 1965 [PDF]

Drawings and characteristics of small portable model of high pressure plasma arc source for stable accurate ultraviolet ...
Erminy, D. E., Hattenburg, A. T., Kostkowski, H. J., Yokley, C. R.   +3 more
core   +1 more source

Characteristics of acoustic-controlled arc in ultrasonic wave-assisted arc

Acta Physica Sinica, 2015
As a new welding method, ultrasound has been successfully introduced into the pool during ultrasonic wave-assisted arc welding process. However, the interaction mechanism between the ultrasound and the arc plasma is not clear, thus preflenting the new technique from engineering applications.
null Xie Wei-Feng, null Fan Cheng-Lei, null Yang Chun-Li, null Lin San-Bao, null Zhang Yu-Qi   +4 more
openaire   +1 more source

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

Advanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan, Nora Fernández Navas, Thorgund Nemec, Ivan Kaban, Ute Hempel, Andrea Voss, Volker Hoffmann, Darius Pohl, Annett Gebert   +8 more
wiley   +1 more source

Arc Characteristics of Various Alcohol Solutions in Water Plasma with a Tunable Mist Generation

Journal of Chemical Engineering of Japan
Water plasma with tunable mist generation was introduced to investigate arc characteristics using four different solutions: water, 1-propanol and 2-propanol, and ethanol solutions.
Soon-Ho Kim, Manabu Tanaka, Takayuki Watanabe   +2 more
doaj   +1 more source