Results 21 to 30 of about 117,127 (343)

Arc erosion resistance of CuCrMo films deposited via magnetron sputtering

open access: yesMaterials Research Express, 2021
Copper-chromium (CuCr) alloys are widely used as electrical contact materials, and their arc erosion resistance can be improved by reducing the sizes of the Cu and Cr phases or by adding Mo.
Li Kai   +10 more
doaj   +1 more source

Across-arc geochemical variations in the Southern Volcanic Zone, Chile (34.5- 38.0°S): Constraints on Mantle Wedge and Input Compositions [PDF]

open access: yes, 2012
Crustal assimilation (e.g. Hildreth and Moorbath, 1988) and/or subduction erosion (e.g. Stern, 1991; Kay et al., 2005) are believed to control the geochemical variations along the northern portion of the Chilean Southern Volcanic Zone.
Aitcheson   +147 more
core   +1 more source

Numerical simulation and analysis of contact erosion by high-current and low-voltage air arc considering the movement of arc

open access: yesAIP Advances, 2023
When a low-voltage circuit breaker (LVCB) breaks a high current, the contact erosion caused by the arc greatly reduces the LVCB’s breaking performance and service lifetime.
Yujie Wang, Nuo Xu, Lijun Wang
doaj   +1 more source

Characterization of ISF-VAT performance in weak magnetic nozzle

open access: yes, 2020
Vacuum arc thruster performance in a magnetic nozzle configuration is experimentally characterized. Measurements are performed on a miniature coaxial thruster with an anode inner diameter of $1.8$ mm. The magnetic field B is produced by a single air coil,
Chowdhury, Satyajit, Kronhaus, Igal
core   +1 more source

Analysis of contact ablation of circuit breaker after short circuit current breaking

open access: yesAIP Advances, 2023
During the opening and closing process of the contact, it will undergo repeated arc ablation and wear. After each ablation and wear, the composition, performance, and shape of the contact surface constantly change, leading to cracks, slag drop, melting ...
Xiaopo Mao   +6 more
doaj   +1 more source

Experimental study on flow structures in arc-shaped bank erosion zones

open access: yesShui kexue jinzhan, 2023
Arc-shaped bank erosion is a common type of bank erosion in the middle and lower reaches of the Yangtze River.It has the characteristics of complex three-dimensional (3-D) flow structures, rapid expansion, and strong destructive capacity.The general and ...
Qihang SUN   +5 more
doaj   +1 more source

Investigating the kinematics of mountain building in Taiwan from the spatiotemporal evolution of the foreland basin and western foothills [PDF]

open access: yes, 2006
The Taiwanese range has resulted from the collision between the Luzon volcanic arc and the Chinese continental margin, which started about 6.5 Myr ago in the north, and has since propagated southward.
Audet   +95 more
core   +5 more sources

The arc-scale spatial distribution of volcano erosion implies coupled magmatism and regional climate in the Cascades arc, United States

open access: yesFrontiers in Earth Science, 2023
The morphology and distribution of volcanic edifices in volcanic terrains encodes the structure and evolution of underlying magma transport as well as surface processes that shape landforms.
D. O’Hara, L. Karlstrom
doaj   +1 more source

Anatomy and origin of authochthonous late Pleistocene forced regression deposits, east Coromandel inner shelf, New Zealand: implications for the development and definition of the regressive systems tract [PDF]

open access: yes, 2004
High-resolution seismic reflection data from the east Coromandel coast, New Zealand, provide details of the sequence stratigraphy beneath an autochthonous, wave dominated inner shelf margin during the late Quaternary (0-140 ka). Since c.
Bard E.   +50 more
core   +2 more sources

Micro-Arcing and Arc Erosion Minimization Using a DC Hybrid Switching Device [PDF]

open access: yesIEEE Transactions on Components and Packaging Technologies, 2008
Hybrid switching devices utilize the advantages of both conventional electrical contacts and solid state electronics to minimize arcing during opening and closing operations. This can result in higher reliability and reduces the need for high cost specialist contact materials. The hybrid switch does not eliminate arcing completely, due to the inductive
Swingler, J., McBride, J.W.
openaire   +2 more sources

Home - About - Disclaimer - Privacy