Mateusz Marczewski

• Doctor of Engineering
• Area Leader for the Engineering Materials Development at Łukasiewicz Research Network - Poznań Institute of Technology

At the interface of thin film development and powder metallurgy technologies, this study aims to characterise the mechanical properties, lattice constants and phase formation of Ti-Nb alloys (8–30 at.%) produced by different manufacturing methods, including conventional powder metallurgy (PM), mechanical alloying (MA) and high power impulse magnetr...

Research laboratories worldwide use the spark plasma sintering (SPS) technique for sintering metallic and ceramic matrix composites. Typically, the SPS sintered parts are low circular cylinders (discs). The upscaling and industrialization of SPS technology face two challenges: the limitation of shaping non-cylindrical parts and the inhomogeneous si...

In this study, the ultrafine-grained Ti23Zr25Nb-based composites with 45S5 Bioglass and Ag, Cu, or Zn additions were produced by application of the mechanical alloying technique. Additionally, the base Ti23Zr25Nb alloy was electrochemically modified in the two stages of processing: electrochemical etching in the solution of H3PO4 and HF followed by...

In the present study, the crystal structure, microstructure, mechanical, corrosion properties, and wettability of bulk Ti23Zr25Nb-x45S5 Bioglass (x = 0, 3, 6, 9 wt.%) and Ti23Zr25Nb—9 wt.% 45S5 Bioglass composites with the addition of 1 wt.% Ag, Cu, or Zn were synthesized and their properties studied. The hardness of these biomaterials is at least...

Titanium β-type alloys are preferred biomaterials for hard tissue replacements due to the low Young modulus and limitation of harmful aluminum and vanadium present in the commercially available Ti6Al4V alloy. The aim of this study was to develop a new ternary Ti-Zr-Nb system at 36≤Ti≤70 (at. %). The technical viability of preparing Ti-Zr-Nb alloys...

High-temperature conditions are harmful for carbon nanotube-based (CNT-based) composites, as CNTs are susceptible to oxidation. On the other hand, adding CNTs to ceramics with low electrical conductivity, such as 3YSZ, is beneficial because it allows the production of complex-shaped samples with spark plasma sintering (SPS). A shielding coating sys...

Kurzfassung Aufgrund einer verschärften Einstufung von Titandioxidpulvern als vermutlich krebserregender Gefahrenstoff, ist mit einer eingeschränkten Nutzbarkeit des fotokatalytisch aktiven Stoffes in allen Sektoren zu rechnen. In dieser Arbeit wird daher eine alternative Anwendung von Titandioxid als fotokatalytisch aktive Bauteilbeschichtung in d...

This study aims to present biological studies of ultrafine-grained Ti-based materials with niobium and zirconium content, and additionally modified with 45S5 bioglass and silver—Ti23Zr25Nb-9BG-Ag. Alloy and composites with 45S5 bioglass and silver were produced with the mechanical alloying approach. The in vitro cytocompatibility of these biomateri...

We report on a facile strategy to impart nanostructured morphology to commercially available ceramic-preforms used for biomedical applications in the field of dentistry. This process involves the deposition of nanotubular zirconium-oxide (ZrNT) membranes onto zirconia (ZrO2) ceramic discs at ambient conditions. ZrNTs are fabricated via electrochemi...

Carbon nanotubes (CNTs) are widely used in ceramic-matrix composites (CMC) as a filler. An individual carbon nanotube exhibits extremely high thermal conductivity, however, the influence of CNTs on the thermal conductivity of CMCs is moderate. In contrast, even a small quantity of CNTs significantly increases the electrical conductivity of CMCs. Th...

To enhance the properties of tungsten diboride, solid solutions of this ceramic with transition metals such as titanium, zirconium, and tantalum were synthesized by spark plasma sintering from the pure elements. The metallic content was in all cases 24 at.%. The specimens were characterized using scanning electron microscopy and energy-dispersive X...

The constant development of technology involves the need to enhance materials, including those used for machining, for instance for cutting inserts. The most common material from this group is WC-Co, which is characterized by high hardness and fracture toughness. Nevertheless, cobalt has a high and unstable price, its resources are limited and it i...

Titanium beta type alloys with an ultrafine grain microstructure are interesting biomaterials that exhibit an excellent mechanical, physicochemical and biological properties. This study aimed to develop a new Ti14Zr16Nb and Ti23Zr25Nb (at. %) alloys. These materials were prepared by the combination of mechanical alloying and powder metallurgy appro...