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Boletín de la Sociedad Española de Cerámica y Vidrio
Article . 2004 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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DIGITAL.CSIC
Article . 2008 . Peer-reviewed
Data sources: DIGITAL.CSIC
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Conformado por vía coloidal de recubrimientos en la cara interna de un tubo de acero

Colloidal forming of coatings in the inner walls of a steel pipe
Authors: Ferrari, Begoña; Moreno, Rodrigo; Rodríguez-Galicia, José Luis; Rojas, Edward;

Conformado por vía coloidal de recubrimientos en la cara interna de un tubo de acero

Abstract

[ES] El desarrollo de las tecnologías de fabricación de recubrimientos presenta importantes limitaciones relativas a los espesores de las capas fabricadas y a la geometría de los substratos a recubrir. En este trabajo se proponen dos procesos de conformado coloidal de revestimientos cerámicos y metálicos en la cara interna de un tubo de acero. El revestimiento cerámico (CaCO3) se ha conformado por deposición electroforética (EPD). Para ello se han preparado suspensiones estables de CaCO3 en agua, y se ha diseñado una célula electroforética en la que el tubo es a la vez el contenedor y el electrodo de trabajo. El revestimiento metálico (níquel) se ha fabricado por vertido de una suspensión estable sobre el propio tubo de acero. Para ello se han acondicionado las suspensiones con el objetivo de mejorar el mojado y la adherencia sobre el acero. A partir de los procesos de EPD y vertido se han obtenido revestimientos cerámicos y metálicos, respectivamente, con espesores de 300-350 μm, homogéneos y fuertemente adheridos a la cara interna del tubo de acero.

[EN] The development of new coating processes has important limitations related to the films thickness and the geometry of the coating substrates. In this work, two colloidal forming processes are proposed for manufacturing ceramic and metallic coatings on the inner surface of a steel pipe. Ceramic coatings of CaCO3 have been formed by electrophoretic deposition (EPD). Aqueous stable suspensions were prepared and a electrophoretic cell was designed, in which the steel tube to be coated acted simultaneously as container and working electrode. Nickel films were prepared by filling the pipe with the suspension and rotating to fully wet the steel surface. Nickel suspensions were formulated focusing an improved wettability and adherence to the steel surface by using binders. From these processes, ceramic and metallic coatings with 300- 350 μm in thickness, homogeneous and strongly adhered to the inner surface of the steel pipe have been obtained.

Este trabajo ha sido financiado por la CICYT (MAT2000-0949). La Dra. Ferrari agradece al CSIC y al Fondo Social Europeo la financiación de este trabajo.

Peer reviewed

Country
Spain
Related Organizations
Keywords

Procesamiento coloidal, recubrimientos, Carbonato cálcico, Níquel, Deposición electroforética, Clay industries. Ceramics. Glass, coatings, Electrophoretic deposition, Calcium carbonates, electrophoretic deposition, nickel, TP785-869, Coatings, Nickel, Procesamiento colloidal, Colloidal processing, Recubrimientos, calcium carbonate, deposición electroforética

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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