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Abstract:

In this work, we present experimentally obtained limits for the values of the neutral copper gas electrical resistivity as a function of the temperature. When a current of about ≈ 103 A or larger flows through a metallic wire in a microsecond or shorter time, the wire performs a phase change from solid to plasma, through intermediate states of metallic liquid and vapor. If the wire is surrounded by a non-conductive dense medium that inhibits the circulation of current outside the wire (e.g., air at room temperature and standard pressure, as in our experiments), the electric current stops when part of the metallic wire becomes gas. This process is known as dark pause, and it has a duration that depends on the experiment parameters. By means of a suitable choice of parameters, we achieved a duration of the dark pause of ≈ 1 μs, which allowed us to determine the limits of the electrical resistivity of the metallic gas. The range of measured values starts from the resistivity of liquid copper at boiling temperature, and goes up to ≈ 0.01 (± 20%) Ohm m at the maximum measured temperature. © 2017 by the authors. Licensee MDPI, Basel, Switzerland.

Registro:

Documento: Artículo
Título:Neutral copper gas resistivity measurements by means of an exploding wire in air
Autor:Bilbao, L.; Prieto, G.R.
Filiación:Departamento de Fisica, Facultad de Ciencias Exactas, Universidad de Buenos Aires, Buenos Aires, 1053, Argentina
INFIP, CONICET, Buenos Aires, Argentina
Universidad de Castilla-La Mancha, E.T.S.I.I.13071, Spain
INEI, Ciudad Real, Spain
Palabras clave:Copper gas resistivity; Exploding wire; Plasma simulations
Año:2017
Volumen:7
Número:8
DOI: http://dx.doi.org/10.3390/app708082910.3390/app7080829
Título revista:Applied Sciences (Switzerland)
Título revista abreviado:Appl. Sci.
ISSN:20763417
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20763417_v7_n8_p_Bilbao

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Citas:

---------- APA ----------
Bilbao, L. & Prieto, G.R. (2017) . Neutral copper gas resistivity measurements by means of an exploding wire in air. Applied Sciences (Switzerland), 7(8).
http://dx.doi.org/10.3390/app708082910.3390/app7080829
---------- CHICAGO ----------
Bilbao, L., Prieto, G.R. "Neutral copper gas resistivity measurements by means of an exploding wire in air" . Applied Sciences (Switzerland) 7, no. 8 (2017).
http://dx.doi.org/10.3390/app708082910.3390/app7080829
---------- MLA ----------
Bilbao, L., Prieto, G.R. "Neutral copper gas resistivity measurements by means of an exploding wire in air" . Applied Sciences (Switzerland), vol. 7, no. 8, 2017.
http://dx.doi.org/10.3390/app708082910.3390/app7080829
---------- VANCOUVER ----------
Bilbao, L., Prieto, G.R. Neutral copper gas resistivity measurements by means of an exploding wire in air. Appl. Sci. 2017;7(8).
http://dx.doi.org/10.3390/app708082910.3390/app7080829