A5040906105- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- Corrosion Behavior and Inhibition
- Orthopaedic implants and arthroplasty
- Bone Tissue Engineering Materials
- Microstructure and mechanical properties
- Additive Manufacturing Materials and Processes
- Luminescence Properties of Advanced Materials
- Inorganic Fluorides and Related Compounds
- Aluminum Alloy Microstructure Properties
- Advancements in Battery Materials
- Metal and Thin Film Mechanics
- Titanium Alloys Microstructure and Properties
- Trace Elements in Health
- Catalytic Processes in Materials Science
- Advanced materials and composites
- Plant and animal studies
- Lanthanide and Transition Metal Complexes
- Additive Manufacturing and 3D Printing Technologies
- nanoparticles nucleation surface interactions
- Magnesium Oxide Properties and Applications
- Flowering Plant Growth and Cultivation
- High Entropy Alloys Studies
- Microwave Dielectric Ceramics Synthesis
- Metal Extraction and Bioleaching
Czech Academy of Sciences, Institute of Physics
2019-2024
University of Chemistry and Technology, Prague
2015-2024
Czech Academy of Sciences
2019-2024
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...
Zinc-based alloys represent one of the most highly developed areas regarding biodegradable materials. Despite this, some general deficiencies such as cytotoxicity and poor mechanical properties (especially elongation), are not properly solved. In this work, a Zn-5Mg (5 wt.% Mg) composite material with tailored superior corrosion is prepared by powder metallurgy techniques. Pure Zn Mg mixed subsequently compacted extrusion at 200 °C an ratio 10. The final product possesses appropriate...
Zinc and its alloys belong to a group of biodegradable materials, which can be potentially used for the preparation temporary orthopedic implants. The research zinc materials revealed lot limitations; however, new processing approaches those enhance their properties, are insufficient now. In this study, composite with 8 wt.% hydroxyapatite (Zn/HA8) prepared first time by extrusion process was characterized from point view structural, mechanical corrosion properties. led good integrity...
Zinc and zinc alloys have been studied due to their corrosion properties as potentially biodegradable materials. In this study, a zinc/hydroxyapatite composite (Zn/HA) containing 16 wt % HA was prepared by spark plasma sintering characterized in detail. The microstructure, mechanical were the mutual relations between microstructure found. porosity evaluated be approximately 18%. (ultimate compression strength = 65 MPa ultimate flexural 120 MPa) are sufficient for potential scaffolding...
The objective of this study is to comprehensively investigate the formation mechanism hopeite on a promising biodegradable Zn-0.8Mg-0.2Sr alloy during its self-corrosion process and subsequent influence interaction material with cells bacteria. Notably, Zn-based alloys inherently generates Zn2+ ions, eliminating necessity for additional zinc compounds in treatment. investigation focused chemical composition applied baths, exposure time, temperature, order analyze structure, quality,...
In this pilot study, we investigated the biocompatibility and degradation rate of an extruded Zn–0.8Mg–0.2Sr (wt.%) alloy on a rabbit model. An screw was implanted into one tibiae New Zealand White rabbits. After 120 days, animals were euthanized. Evaluation included clinical assessment, microCT, histological examination implants, analyses adjacent bone, assessment zinc, magnesium, strontium in vital organs (liver, kidneys, brain). The bone sections with examined via scanning electron...
The issue of intrinsic microstructural and mechanical instability Zn-based metals limits their expansion in potential applications bioresorbable stents orthopedic fixators. A new concept stabilization Zn microstructure by a small fraction nontoxic nanometric ZnO dispersoids is proposed for the first time demonstrated on particular bioabsorbable model material. effect post-processing stability, deformation strengthening mechanisms, corrosion, in-vitro biological behavior are pursued. arise...
Zinc and its alloys seem to be promising candidates for biodegradable applications. Those materials are often modified by other elements or compounds in order enhance their properties. The combination of zinc apatites is challenging several reasons. However, the advantages connected with biological aspects suggest need further research into such materials. In this study, three zinc-based composites 4 8 wt. % nanohydroxyapatite nanomonetite (Zn-4MO, Zn-4HA, Zn-8HA) were prepared sintering...
Zinc alloys belong to the widely studied materials for applications like medical devices, however, they often encounter an inappropriate combination of mechanical/corrosion/biological properties. In this respect, we produced Zn–1Mg and Zn–1Mg–1Si containing biologically friendly elements with potential strengthening effects on zinc matrix by powder metallurgy methods including mechanical alloying, spark plasma sintering, extrusion further enabling formation unique extremely fine-grained...
Zinc materials are considered promising candidates for bioabsorbable medical devices used the fixation of broken bones or stents. Materials these applications must meet high mechanical property requirements. One ways to fulfil demands is related microstructure refinement, particularly decrease in grain size. In present work, we combine two powder metallurgy techniques (mechanical alloying-MA, and spark plasma sintering-SPS) prepare Zn-1Mg-0.5Sr nanograin material. The compacted material...