A5060440904- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- Hydrogen Storage and Materials
- Corrosion Behavior and Inhibition
- Titanium Alloys Microstructure and Properties
- Bone Tissue Engineering Materials
- Additive Manufacturing Materials and Processes
- Orthopaedic implants and arthroplasty
- Metal and Thin Film Mechanics
- Aluminum Alloy Microstructure Properties
- Intermetallics and Advanced Alloy Properties
- Microstructure and mechanical properties
- MXene and MAX Phase Materials
- Material Properties and Applications
- Advanced ceramic materials synthesis
- Advanced Welding Techniques Analysis
- Additive Manufacturing and 3D Printing Technologies
- Advanced materials and composites
- High Entropy Alloys Studies
- Hydrogen embrittlement and corrosion behaviors in metals
- Magnesium Oxide Properties and Applications
- Trace Elements in Health
- Shape Memory Alloy Transformations
- Metallurgical and Alloy Processes
- Powder Metallurgy Techniques and Materials
University of Chemistry and Technology, Prague
2016-2025
Czech Academy of Sciences
2020-2021
Czech Academy of Sciences, Institute of Physics
2020-2021
Institute of Chemical Technology
2009-2017
Charles University
2017
State Research Institute for Material Protection (Czechia)
2015
Abstract In vitro cytotoxicity testing is an indispensable part of the development new biomaterials. However, standard ISO 10993-5 enables variability in conditions, which makes results test incomparable. We studied influence media composition on test. Solutions ZnCl 2 served as simulated extracts and we also used three types Zn-based Mg-based degradable metals. incubated cells with solutions prepared two concentrations serum (5 10%). compared toxic effect L929 murine fibroblast-derived cell...
Oxide-dispersion-strengthened (ODS) alloys exhibit exceptional mechanical properties, making them ideal for high-temperature applications in areas such as aerospace and nuclear reactors. The traditional manufacturing of ODS involves alloying, followed by processes hot extrusion isostatic pressing. However, these methods are limited when it comes to producing complex geometries. Recent advances additive (AM) techniques, specifically selective laser melting (SLM) directed-energy deposition...
This study investigated the influence of plasma electrolytic oxidation (PEO) preparation time on degradation resistance Mg-1Zn (Z1) and Mg-1Zn-0.4Ca (ZX10) alloys, with comparisons to pure Mg commercial Mg-4Y-3RE-0.4Zr (WE43). PEO layers were formed varying times (5, 10, 15 min) analyzed for microstructure, morphology, corrosion resistance. The results indicated that a 10 min had most homogeneous structure optimal Prolonged increased pore density, crack formation, layer thickness while also...
This study describes the corrosion resistance of extruded, and extruded with post-processing annealing, Mg–7.5Li–3Al–1Zn alloys. The results demonstrate that extrusion at 350 °C an speed 0.5 s−1 does not lead to full recrystallization alloy, material still exhibits a dendritic microstructure. annealing triggers microstructure transformation, relative composition alloy changes. ratio β(Li) α(Mg) in was 29–71%; after amount increased, annealed 35–65%. Corrosion testing shows 3.5 wt% NaCl...
The microstructure-dependent corrosion resistance of dual structured fine-grained Mg-7.5Li-3Al-1Zn has been investigated. alloys were extruded using extrusion with a forward-backward rotating die (KoBo, newly developed SPD method) at two different ratios. microstructures formed in the characterized, and influence grain refinement on was analyzed. For (α + β) Mg-Li alloys, higher ratio led to more intensive refinement; however, this relationship did not improve their chloride-containing...
Zinc and its alloys are considered as promising materials for the preparation of biodegradable medical devices (stents bone fixation screws) due to their enhanced biocompatibility. These must achieve an ideal combination mechanical corrosion properties that can be influenced by alloying or thermomechanical processes. This paper presents effects different (MA) parameters on composition Zn-1Mg powder. At same time, this study describes influence MA Zn-6Mg Zn-16Mg alloys. The selected powders...
In this study, advanced techniques such as atom probe tomography, atomic force microscopy, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy were used to determine the corrosion mechanism of as-ECAPed Zn-0.8Mg-0.2Sr alloy. The influence microstructural surface features on was investigated. Despite its significance, composition before exposure is often neglected by scientific community. analyses revealed formation thin ZnO, MgO, MgCO3 layers material exposure. These...
In this paper, selected magnesium, zinc and iron biodegradable alloys were studied as prospective biomaterials for temporary medical implants like stents fixation devices fractured bones.Mechanical properties of the characterized with hardness tensile tests.In-vitro corrosion behavior was using immersion tests in a simulated physiological solution (SPS, 9 g/L NaCl) to roughly estimate in-vivo biodegradation rates implants.It found that Mg Zn limited by strength 370 MPa, while Fe achieved 530...
Introduction A standard osteosynthetic material for maxillofacial skeleton is titanium and its alloys. The convenience of degradable avoiding second surgery in cases, where removal the necessary. Magnesium biodegradable alloys have similar mechanic properties as cortical bone – reasonable corrosion sufficient biologic properties. They might be used facial fixation. Materials methods study included a total 16 rabbits, they were randomly divided into two groups. Each group received screws (WE4...