Journal Article

PUBDB-2019-04113

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Layered double hydroxide based active corrosion protective sealing of plasma electrolytic oxidation/sol-gel composite coating on AA2024

Bouali, A. C.Extern* ; Straumal, E. A. ; Serdechnova, M.Extern*HZG* ; Wieland, F.EMBL* ; Starykevich, M. ; Blawert, C.Extern* ; Hammel, J.HZG* ; Lermontov, S. A. ; Ferreira, M. G. S. ; Zheludkevich, M. L.

2019
Elsevier Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.apsusc.2019.07.117  doi:10.3204/PUBDB-2019-04113

Abstract: This work reports a novel approach for growing layered double hydroxide (LDH) films on any plasma electrolytic oxidation (PEO) coated AA2024 independently of the nature of the PEO coating. The specific PEO coating chosen to carry out this work is considered to be not suitable for direct LDH growth because of phase composition and morphological features. In this paper, we describe a new methodology that consists of covering the PEO coating with a thin layer of aluminum oxide based xerogel as the source of aluminate ions for subsequent in-situ LDH growth. X-ray diffraction (XRD) and scanning electron microscope (SEM) images showed a successful formation of LDHs on the surface. An improvement in terms of active corrosion protection was also demonstrated by electrochemical impedance spectroscopy (EIS) and scanning vibrating electrode technique (SVET).

Note: © Authors. Published by Elsevier B.V.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Zentrum für Material- und Küstenforschung (HZG)

Research Program(s):

1. 6G3 - PETRA III (POF3-622) (POF3-622)

Experiment(s):

1. PETRA Beamline P05 (PETRA III)

Appears in the scientific report 2019

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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