Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk


Mateusz Włoczewski

Zakład Mechaniki Materiałów (ZMM)
telefon: (+48) 22 826 12 81 wewn.: 149
pokój: 231

Ostatnie publikacje
1.  Mościcki T. P., Psiuk R., Jarząbek D. M., Ciemiorek-Bartkowska M., Kulikowski K., Jasiński J., Włoczewski M., Lewandowska-Szumieł M., Effect of titanium and deposition parameters on microstructure and mechanical properties of W-Ti-B thin films deposited by High Power Impulse Magnetron Sputtering, SURFACE AND COATINGS TECHNOLOGY, ISSN: 0257-8972, DOI: 10.1016/j.surfcoat.2024.130915, Vol.485, No.130915, pp.1-13, 2024

Tungsten diboride alloyed with transition metals provides an opportunity to obtain exceptional mechanical, physical, and chemical properties. We report a strategy for designing and synthesizing of superhard and low-compressible ceramic thin films with increased toughness and lowered residual stresses (σ < −0.9 GPa) deposited with high-power impulse magnetron sputtering (HiPIMS) from one target. The addition of 7–12 % titanium promotes additional strengthening mechanisms of the layers in one material, leading to the improvement of wear resistance compared to an alloyed WB2-z yet at even higher hardness 43.8 ± 2.1 GPa and nanoindentation toughness 4.9 ± 0.2 MPa√m. The compression of the micropillar shows that titanium addition changed the type of nanoindentation from cracking along the slip plane to bulging on the top of the pillar and next the crack initiation along column boundaries. The highest adhesion of the layers is obtained for addition of 7 % titanium and in all cases the wear has abrasive character. The controlled use of 200 μs pulses during synthesis with HiPIMS allows for an increase in the deposition rate and maintaining exceptional mechanical properties of the layers even at a substrate temperature of 300 °C.

Słowa kluczowe:
Ternary transition metal diboride thin films, Mechanical properties, HiPIMS magnetron sputtering, Wear resistance and adhesion

Afiliacje autorów:
Mościcki T. P. - IPPT PAN
Psiuk R. - IPPT PAN
Jarząbek D. M. - IPPT PAN
Ciemiorek-Bartkowska M. - inna afiliacja
Kulikowski K. - inna afiliacja
Jasiński J. - inna afiliacja
Włoczewski M. - inna afiliacja
Lewandowska-Szumieł M. - inna afiliacja
2.  Krajewski M., Kaczmarek A., Tokarczyk M., Lewińska S., Włoczewski M., Bochenek K., Jarząbek D., Mościcki T., Hoffman J., Ślawska-Waniewska A., Laser-Assisted Growth of Fe3O4 Nanoparticle Films on Silicon Substrate in Open Air, physica status solidi (a), ISSN: 1862-6319, DOI: 10.1002/pssa.202200786, No.2200786, pp.1-5, 2023

This work presents a growth of Fe3O4 nanoparticle films on silicon substrate. The iron oxide is deposited applying a pulsed laser deposition technique. The process is performed in open air in the absence and presence of external magnetic field. In fact, the morphologies of the obtained Fe3O4–Si samples are similar. The Fe3O4 nanoparticles are spherical with average diameters of 30 nm and are densely agglomerated on the Si substrate. The Fe3O4–Si material prepared in the absence of magnetic field has revealed more intense signals during X-ray diffraction and Raman measurements. The magnetic investigations indicate that the Fe3O4 nanoparticles are significantly coupled with the Si substrate and do not exhibit superparamagnetic behavior. Moreover, the Verwey transition is 98 K for both investigated Fe3O4–Si samples.

Słowa kluczowe:
Fe3O4 nanoparticles,magnetic materials,pulsed laser deposition

Afiliacje autorów:
Krajewski M. - IPPT PAN
Kaczmarek A. - IPPT PAN
Tokarczyk M. - Uniwersytet Warszawski (PL)
Lewińska S. - Institute of Physics, Polish Academy of Sciences (PL)
Włoczewski M. - inna afiliacja
Bochenek K. - IPPT PAN
Jarząbek D. - IPPT PAN
Mościcki T. - IPPT PAN
Hoffman J. - IPPT PAN
Ślawska-Waniewska A. - inna afiliacja

Abstrakty konferencyjne
1.  Jarząbek D.M., Jenczyk P., Włoczewski M., Microstructure and tribology of nitrided heterogenious eutectic high entropy alloys, FEMS EUROMAT 2023, 17th European Congress and Exhibition on Advanced Materials and Processes, 2023-09-03/09-07, Frankfurt n/Menem (DE), pp.1-1, 2023

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