Results 221 to 230 of about 19,778 (262)
Some of the next articles are maybe not open access.
Proceedings of the IEEE, 1973
This paper is a review of vacuum-arc phenomena which are related to switching devices. Despite the device overtones, the approach adopted for this paper is fundamental. Topics discussed include the drawn arc, the triggered arc, the power input to the cathode spot, cathode-spot division, arc stability, substructure of the cathode spot, dielectric ...
openaire +1 more source
This paper is a review of vacuum-arc phenomena which are related to switching devices. Despite the device overtones, the approach adopted for this paper is fundamental. Topics discussed include the drawn arc, the triggered arc, the power input to the cathode spot, cathode-spot division, arc stability, substructure of the cathode spot, dielectric ...
openaire +1 more source
Nature, 1967
IN an investigation of the cathode mechanism of the vacuum arc, in a vacuum of 10−5 torr, arc voltages were recorded for forty-one different cathode metals. Oscillographic measurements were made at the minimum stable arcing current over a period of 20 sec; values varied from 5 to 25 V.
openaire +1 more source
IN an investigation of the cathode mechanism of the vacuum arc, in a vacuum of 10−5 torr, arc voltages were recorded for forty-one different cathode metals. Oscillographic measurements were made at the minimum stable arcing current over a period of 20 sec; values varied from 5 to 25 V.
openaire +1 more source
Deionisation of an interrupted vacuum arc
Proceedings of the Institution of Electrical Engineers, 1977Measurements have been made of time-dependent saturation ion currents flowing to a probe and to the discharge electrodes following the forced extinction of high-current (1–5 kA) vacuum arcs of short duration (≃1 ms) on copper electrodes.The results have been utilised to derive ion-flux distributions irrespective of ion-charge number, assuming ...
G.J. Bauer, R. Holmes
openaire +1 more source
2008
Abstract The vacuum arc remelting (VAR) process is widely used to improve the cleanliness and refine the structure of standard air melted or vacuum induction melted (VIM) ingots and also used in the triplex production of superalloys. This article illustrates the VAR process and the capabilities and variables of the VAR process.
openaire +1 more source
Abstract The vacuum arc remelting (VAR) process is widely used to improve the cleanliness and refine the structure of standard air melted or vacuum induction melted (VIM) ingots and also used in the triplex production of superalloys. This article illustrates the VAR process and the capabilities and variables of the VAR process.
openaire +1 more source
IEEE Transactions on Plasma Science, 1977
This paper briefly reviews anode phenomena in vacuum arcs, specially experimental work. It discusses, in succession, arc modes at the anode, anode temperature measurements, anode ions, transitions of the arc into various modes (principally the anode spot mode), and theoretical explanations of anode phenomena. The two most common anode modes in a vacuum
openaire +1 more source
This paper briefly reviews anode phenomena in vacuum arcs, specially experimental work. It discusses, in succession, arc modes at the anode, anode temperature measurements, anode ions, transitions of the arc into various modes (principally the anode spot mode), and theoretical explanations of anode phenomena. The two most common anode modes in a vacuum
openaire +1 more source
Physica B+C, 1981
Abstract Considerable effort has been devoted to the analysis of mass flows in vacuum arcs during recent years. It is generally agreed that there are three different fluxes which orginate from the cathode; they consist of ions, molten droplets and metal vapour. A critical summary will be given of the available data on these mass flows.
openaire +1 more source
Abstract Considerable effort has been devoted to the analysis of mass flows in vacuum arcs during recent years. It is generally agreed that there are three different fluxes which orginate from the cathode; they consist of ions, molten droplets and metal vapour. A critical summary will be given of the available data on these mass flows.
openaire +1 more source
2008 23rd International Symposium on Discharges and Electrical Insulation in Vacuum, 2008
+4 more sources
+4 more sources