cris.boxmetadata.label.title
Evaluation of the electrical conductivity and corrosion resistance for layers deposited via sputtering on stainless steel
cris.boxmetadata.label.dateissued
29 browse.startsWith.months.december 2017
cris.boxmetadata.label.accesslevel
open access
cris.boxmetadata.label.resourcetype
conference paper
cris.boxmetadata.label.authors
Blanco J.
Salas Y.
Jiménez C.
Pineda Y.
BUSTAMANTE DOMINGUEZ, ANGEL GUILLERMO
Universidad INCCA de Colombia
cris.boxmetadata.label.publisher
Institute of Physics Publishing
cris.boxmetadata.label.abstract
In some Engineering fields, we need that conductive materials have a mechanic performance and specific electrical for that they maintain conditions or corrosive attack if they are in the environment or if they are closed structure. The stainless steels have an inert film on their surface and it has the function to act in contrast to external agents who generates the corrosion, especially for stings, spoiling the film until to fail. We found a solution taking into account the electrical performance and the anticorrosive; into the process we put recovering of specific oxides on, stainless steel using the method of sputtering with Unbalanced Magnetron, (UBM) varying the oxygen in the reactive environment. The coating obtained had a thickness one micron approximately and we saw on serious structural uniformity [1]. The corrosion resistance was evaluated through the potentiodynamics polarization and electrochemical spectroscopy impedance in NACL according to the standard. The cathode protection is the most important method employed for the corrosion prevention of metallic structures in the soil or immersed on the water. The electrical resistivity was evaluated with the four points methods and it showed a behaviour of diode type in some substrates with a threshold potential in several volts. We noticed a simple resistance solution when it was analysed in the Nyquist graphics whit the Electrochemical Impedance Spectroscopy technique. With on equivalent circuit, for this reason we determinate a variation in the corrosion speed in almost two orders of magnitude when we analysed the potentiodynamics curve by Tafel approximation. The data obtained and analysed show that this type of surface modification maintains the conductivity condition at the interface, improving the resistance in relation whit the corrosion of these elements where the recovering allowed the ionic flow wished for overcoming threshold voltage, acting as an insulator in different cases.
cris.boxmetadata.label.volume
935
cris.boxmetadata.label.issue
1
cris.boxmetadata.label.language
English
cris.boxmetadata.label.ocdeknowledgeArea
Ingeniería eléctrica, Ingeniería electrónica Ingeniería de materiales
cris.boxmetadata.label.doi
cris.boxmetadata.label.scopusidentifier
2-s2.0-85041417619
cris.boxmetadata.label.source
Journal of Physics: Conference Series
cris.boxmetadata.label.containerissn
17426588
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