- Corrosion Behavior and Inhibition
- Concrete Corrosion and Durability
- Metal and Thin Film Mechanics
- ZnO doping and properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Advanced ceramic materials synthesis
- Advanced Welding Techniques Analysis
- Titanium Alloys Microstructure and Properties
- Fatigue and fracture mechanics
- Structural Analysis of Composite Materials
- Material Properties and Applications
- Aluminum Alloys Composites Properties
- Carbon and Quantum Dots Applications
- Conservation Techniques and Studies
- Graphene research and applications
- Additive Manufacturing Materials and Processes
- Aluminum Alloy Microstructure Properties
- Engineering and Materials Science Studies
- Electrodeposition and Electroless Coatings
- Graphene and Nanomaterials Applications
- Advanced materials and composites
Paderborn University
2015-2021
Abstract Dodecyl amine edge functionalized few-layer graphene oxide quantum dots were synthesized in good yields. The covalent functionalization was demonstrated with NMR and AFM-IR. resulting structure particle size measured AFM HRTEM. thermal stability of the compound investigated showed a up to 220 °C. modified excellent solubility various organic solvents, including ethers, methanol, toluene, n -hexane, heptane, xylene, dichloromethane toluene. toluene solution also proven by static...
The influence of a chemical or mechanical surface modification followed by different post‐heat treatments on the bond strength galvanized steel/aluminum composites is studied. An incremental rolling process used for joint formation based plastic deformation. morphology, state modified surfaces as well cross‐section, and local potential distribution welded zone characterized microscopic spectroscopic methods. stability analyzed shear‐force test in combination with failure analysis. A clear...
The scanning Kelvin probe blister test (SKP‐BT) was applied to study the corrosive delamination of model epoxy films ZnMgAl alloy coated steel substrates. This allowed superimposition mechanical and load. Moreover, ultra‐thin 3‐aminoproptriethoxysilane ( γ ‐APS) were studied as adhesion promoting corrosion protecting films, which inhibit process. surface coating with without organosilane thin analyzed by polarization modulation infrared reflection absorption spectroscopy (PM‐IRRAS) X‐ray...
In this study, nanocrystalline ZnO (NC ZnO) films are considered as interface layers for polymer/metal bonds consisting of hot-dip galvanised steel (HDG) and epoxy resin. NC with a thickness less than one micrometre were deposited on HDG through hydrothermal deposition from aqueous Zn nitrate/hexamethylenetetramine electrolytes. Furthermore, 3-aminopropylphosphonic acid (APPA) 3-aminopropyltriethoxysilane (γ-APS) molecular adhesion-promoting layers. 90°-peel tests water-saturated confirm the...