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Titel: Obtenção de revestimentos de alumínio-silício para a proteção química de aço inoxidável
Sonstige Titel: Synthesis of Al2O3-SiO2 ceramic coatings for chemical protection of stainless steel
Verfasser: Atik, Mohamed
De Lima Neto, Pedro
Avaca, Luis A.
Aegerter, Michel A.
Sprache: Sonstige
Erscheinungsjahr: 1994
Quelle: Anais / 38° Congresso Brasileiro de Cerâmica; 2° Encontro de Mineradores e Consumidores : [18 a 21 de junho de 1994, Blumenau, SC] / Associação Brasileira de Cerâmica. - Vol. 1. - São Paulo, SP : Associação Brasileira de Cerâmica, 1994, S. 182-187
SWD-Schlagwörter: Edelstahl
Tauchbeschichten
Ausgangsmaterial
Ethanol
Röntgenbeugung
DDC-Sachgruppe: 500 Naturwissenschaften
Dokumentart : InProceedings (Aufsatz / Paper einer Konferenz etc.)
Kurzfassung: -
Al2O3-SiO2 sol-gel coatings of different compositions have been deposited on 316L stainless steel by dip-coating from a sonocatalyzed sol made by the mixture of Al(OC4H9)3 e Si(OC2H5)4 as precursors and ethanol and acetic acid as solvents. The coatings were densified at 600, 800 and 1000°C and characterized by X-rays diffraction. The influence of the coatings on the corrosion behavior of the substrate was tested in 3% NaCl by potentiodynamic polarization curves at 1 mV s(-1). The electrochemical results showed that the films densified at 800 and 1000°C have a better electrochemical behavior than the films densified at 600°C. An increase in the aluminium content improves the behavior of the coatings.
Link zu diesem Datensatz: urn:nbn:de:bsz:291-scidok-23610
hdl:20.500.11880/24231
http://dx.doi.org/10.22028/D291-24175
SciDok-Publikation: 7-Sep-2009
Fakultät: Sonstige Einrichtungen
Fachrichtung: SE - INM Leibniz-Institut für Neue Materialien
Fakultät / Institution:INM
SE - Sonstige Einrichtungen

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