Description
The project will develop active multi-functional surfaces with high level of self-healing ability on the basis of Layered Double Hydroxide (LDH) structures formed on different industrially relevant metallic substrates. The main idea of the project is based on “smart” triggered release on demand for functional organic or inorganic anionic compounds intercalated into intergallery spaces of LDHs. The active functionality is achieved via controllable substrate-governed growth of LDH architectures on aluminium (Al), magnesium (Mg) and Zinc (Zn) based alloys. The functional anions such as corrosion inhibitors, biocides, drugs, or hydrophobic agents are introduced into the intergallery spaces during the growth of LDH or upon a post-treatment stage. The release of the functional agents occurs only on demand when the respective functionality is triggered by the relevant external stimuli such as presence of anions or local pH change.
The project focuses on two main applications, namely aeronautical and automotive. The active LDH treatments is expected to create significant benefits when applied in these situations. The respective relevant substrates are chosen as the main objects of interest: Mg alloys for both applications; Al alloys for both transportation industries as well; galvanized steel as a main material for automobiles. Moreover the suggested surface treatments, especially the one with active self-healing ability, are also considered for light-weight multi-material structures which are prone to fast galvanically induced corrosion. The suggested surface treatments can offer possibility for fast implementation of the process at industrial level. The main expected impacts are related to the improvement of the life cycle of the light-weight structures utilized in transport industries via optimization of the maintenance schedules and increasing the fault tolerance.
The project foresees intensive exchange of staff between the involved partners, which are from both the academic and non-academic sector. Also, staff exchange with a partner organization outside the EU is planned.
Main Local Researcher
Coordination
Helmholtz-Zentrum Geesthacht
Partners
AIRBUS DEFENCE AND SPACE GMBH (Germany); UNIVERSIDADE DE AVEIRO (Portugal); SMALLMATEK - SMALL MATERIALS AND TECHNOLOGIES LDA (Portugal)
Outputs
Use of synergistic mixture of chelating agents for in situ LDH growth on the surface of PEO-treated AZ91
Petrova, E; Serdechnova, M; Shulha, T; Lamaka, SV; Wieland, DCF; Karlova, P; Blawert, C; Starykevich, M; Zheludkevich, MLZn-Al LDH growth on AA2024 and zinc and their intercalation with chloride: Comparison of crystal structure and kinetics
Bouali, AC; Iuzviuk, MH; Serdechnova, M; Yasakau, KA; Wieland, DCF; Dovzhenko, G; Maltanava, H; Zobkalo, IA; Ferreira, MGS; Zheludkevich, MLLayered double hydroxides (LDHs) as functional materials for the corrosion protection of aluminum alloys: A review
Bouali, AC; Serdechnova, M; Blawert, C; Tedim, J; Ferreira, MGS; Zheludkevich, MLOne-step synthesis and growth mechanism of nitrate intercalated ZnAl LDH conversion coatings on zinc
Mikhailau, A; Maltanava, H; Poznyak, SK; Salak, AN; Zheludkevich, ML; Yasakau, KA; Ferreira, MGSLayered double hydroxide based active corrosion protective sealing of plasma electrolytic oxidation/sol-gel composite coating on AA2024
Bouali, AC; Straumal, EA; Serdechnova, M; Wielan, DCF; Starykevich, M; Blawert, C; Hammel, JU; Lermontov, SA; Ferreira, MGS; Zheludkevich, MLCast iron corrosion protection with chemically modified Mg-Al layered double hydroxides synthesized using a novel approach
Vieira, DEL; Sokol, D; Smalenskaite, A; Kareiva, A; Ferreira, MGS; Vieira, JM; Salak, ANEvaporation of Electrolyte During SVET Measurements: The Scale of the Problem and the Solutions
Bouali, AC; Bastos, AC; Lamaka, SV; Serdechnova, M; Ferreira, MGS; Zheludkevich, MLLayered Double Hydroxide Clusters as Precursors of Novel Multifunctional Layers: A Bottom-Up Approach
Neves, CS; Bastos, AC; Salak, AN; Starykevich, M; Rocha, D; Zheludkevich, ML; Cunha, A; Almeida, A; Tedim, J; Ferreira, MGSA novel bilayer system comprising LDH conversion layer and sol-gel coating for active corrosion protection of AA2024
Yasakau, KA; Kuznetsova, A; Kallip, S; Starykevich, M; Tedim, J; Ferreira, MGS; Zheludkevich, MLThe Influence of PSA Pre-Anodization of AA2024 on PEO Coating Formation: Composition, Microstructure, Corrosion, and Wear Behaviors
Serdechnova, M; Karpushenkov, SA; Karpushenkava, LS; Starykevich, M; Ferreira, MGS; Hack, T; Iuzviuk, MH; Zobkalo, IA; Blawert, C; Zheludkevich, MLHow Density Functional Theory Surface Energies May Explain the Morphology of Particles, Nanosheets, and Conversion Films Based on Layered Double Hydroxides
Galvao, TLP; Neves, CS; Zheludkevich, ML; Gomes, JRB; Tedim, J; Ferreira, MGSHierarchically organized Li-Al-LDH nano-flakes: a low-temperature approach to seal porous anodic oxide on aluminum alloys
Mata, D; Serdechnova, M; Mohedano, M; Mendis, CL; Lamaka, SV; Tedim, J; Hack, T; Nixon, S; Zheludkevich, MLPEO Coatings with Active Protection Based on In-Situ Formed LDH-Nanocontainers
Serdechnova, M; Mohedano, M; Kuznetsov, B; Mendis, CL; Starykevich, M; Karpushenkov, S; Tedim, J; Ferreira, MGS; Blawert, C; Zheludkevich, MLActive protective PEO coatings on AA2024: Role of voltage on in-situ LDH growth
Mohedano, M; Serdechnova, M; Starykevich, M; Karpushenkov, S; Bouali, AC; Ferreira, MGS; Zheludkevich, MLBioactive plasma electrolytic oxidation coatings on Mg-Ca alloy to control degradation behaviour
Mohedano, M; Luthringer, BJC; Mingo, B; Feyerabend, F; Arrabal, R; Sanchez-Egido, PJ; Blawert, C; Willumeit-Romer, R; Zheludkevich, ML; Matykina, EInterlayer intercalation and arrangement of 2-mercaptobenzothiazolate and 1,2,3-benzotriazolate anions in layered double hydroxides: In situ X-ray diffraction study
Serdechnova, M; Salak, AN; Barbosa, FS; Vieira, DEL; Tedim, J; Zheludkevich, ML; Ferreira, MGSSealing of tartaric sulfuric (TSA) anodized AA2024 with nanostructured LDH layers
Kuznetsov, B; Serdechnova, M; Tedim, J; Starykevich, M; Kallip, S; Oliveira, MP; Hack, T; Nixon, S; Ferreira, MGS; Zheludkevich, MLSponsors
