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BP

Bronisław Psiuk

Institute of Ceramics and Building Materials

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J. Szade

University of Silesia in Katowice

Kinga Czechowska

Łukasiewicz Research Network - Institute of Non-Ferrous Metals

K. Szot

University of Silesia in Katowice

B. Lipowska

Institute of Ceramics and Building Materials

A. Śliwa

Institute of Ceramics and Building Materials

Jacek Podwórny

Institute of Ceramics and Building Materials

T. Wala

Institute of Ceramics and Building Materials

Jerzy Kubacki

University of Silesia in Katowice

Robert Kusiorowski

Institute of Ceramics and Building Materials

Anna Gerle

Institute of Ceramics and Building Materials

Cooperative Institutions

Institute of Ceramics and Building Materials

University of Silesia in Katowice

Łukasiewicz Research Network

Institute of Physics

Silesian Center for Heart Disease

Silesian University of Technology

Forschungszentrum Jülich

Jagiellonian University

AGH University of Krakow

Czech Academy of Sciences, Institute of Physics

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Functionalization of the Implant Surface Made of NiTi Shape Memory Alloy

Materials (2023)

Karolina Dudek Tomasz Goryczka Mateusz Dulski Bronisław Psiuk Agnieszka Szurko

To functionalize and improve the biocompatibility of the surface of a medical implant made of NiTi shape memory alloy and used in practice, a clamp, multifunctional layers composed of amorphous TiO2 interlayer, and a hydroxyapatite coating were produced. Electrophoresis, as an efficient method of surface modification, resulted in the formation of a uniform coating under a voltage of 60 V and deposition time of 30 s over the entire volume of the implant. The applied heat treatment (800 °C/2 h) let toa dense, crack-free, well-adhered HAp coating with a thickness of ca. 1.5 μm. and a high crack resistance to deformation associated with the induction of the shape memory effect in the in the deformation range similar to the real implant work after implantation. Moreover, the obtained coating featured a hydrophilic (CA = 59.4 ± 0.3°) and high biocompatibility.

Nickel titanium

Biocompatibility

Surface Modification

Titanium alloy

10.3390/ma16041609

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Citations (7)

Preliminary Tests of Cellular SiC/Iron Alloy Composite Produced by a Pressureless Infiltration Technique

Archives of Foundry Engineering (2017)

B. Lipowska Bronisław Psiuk M. Cholewa Ł. Kozakiewicz

Abstract Preliminary tests aimed at obtaining a cellular SiC/iron alloy composite with a spatial structure of mutually intersecting skeletons, using a porous ceramic preform have been conducted. The possibility of obtaining such a composite joint using a SiC material with an oxynitride bonding and grey cast iron with flake graphite has been confirmed. Porous ceramic preforms were made by pouring the gelling ceramic suspension over a foamed polymer base which was next fired. The obtained samples of materials were subjected to macroscopic and microscopic observations as well as investigations into the chemical composition in microareas. It was found that the minimum width of a channel in the preform, which in the case of pressureless infiltration enables molten cast iron penetration, ranges from 0.10 to 0.17 mm. It was also found that the ceramic material applied was characterized by good metal wettability. The ceramics/metal contact area always has a transition zone (when the channel width is big enough), where mixing of the components of both composite elements takes place.

Infiltration (HVAC)

Penetration (warfare)

10.1515/afe-2017-0021

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Tworzywa ceramiczne z węglika krzemu otrzymywane metodą gelcasting

Prace Instytutu Ceramiki i Materiałów Budowlanych (2015)

T. Pochwała Bronisław Psiuk

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Photofunctionalization of dental zirconia oxide: Surface modification to improve bio-integration preserving crystal stability

Colloids and Surfaces B Biointerfaces (2017)

Marco Roy Alfonso Pompella Jerzy Kubacki Adam Piosik Bronisław Psiuk

Carbon fibers

Surface Modification

Titanium oxide

10.1016/j.colsurfb.2017.05.031

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Chemical Looping Combustion Related Processes Using Solid Oxygen Carriers Oxidized in CO₂ Atmosphere

Ecological Chemistry and Engineering S (2020)

Bronisław Psiuk J Wojsa Anna Gerle T. Pochwała J. Szade

Abstract Chemical-looping combustion (CLC) is an attractive process in CO 2 capture, especially when solid oxygen carriers are used in it. The main requirements for oxygen-transporting materials include appropriate oxidation (in air) and reduction (in the presence of fuel) ability. In the paper a conceptual proposition for CLC-related processes with the application of solid oxygen carriers oxidized in both air and CO 2 atmosphere has been presented. The possibility of the “looping” process on the same carriers using both CO 2 and air atmosphere as an oxidizing agent allows us to enrich the concept of CLC and related processes by proposing a cyclic recirculation of the produced CO 2 back to the installation. The oxidizing of solid oxygen carrier in a CO 2 atmosphere is accompanied by CO emission from the plant. This toxic gas could be transformed into a useful product in any chemical process. It is possible to combine the looping processes with manufacturing of any appropriate morphological form of carbon in the cyclic CO disproportionation process. The combined process could lead to a lower CO 2 emissions to the environment. SrTiO 3 doped by Cr (STO:Cr) and a mixture of TiO 2 - and Ni-based compounds (TiO 2 -Ni) were investigated as oxygen transporting materials. The experiment methodology based on thermogravimetric, diffraction and spectroscopic studies was shown. Thermogravimetric (TGA) and Powder Diffraction (XRD) measurements were provided in-situ during a few cycles in a reducing (Ar+3 % H 2 ) and oxidizing environment. Moreover, the STO:Cr powders were characterized ex-situ by the X-ray Photoelectron Spectroscopy (XPS) method. It was found that in tested conditions the cyclic process of the investigated powders’ oxidation and reduction is possible. Satisfactory results considering the oxygen transport capacity was obtained for the TiO 2 -Ni sample.

Chemical-Looping Combustion

Oxidizing agent

Thermogravimetric analysis

Reducing atmosphere

Solid fuel

10.2478/eces-2020-0036

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Structural stratification of Sr_{1 − x}Ca_xRuO₃ thin films: Influence of aging process

physica status solidi (a) (2012)

Marcin Młynarczyk K. Szot U. Poppe U. Breuer Shao‐Bo Mi

Abstract Epitaxial Sr 1 − x Ca x RuO 3 thin films were grown on SrTiO 3 and LaAlO 3 substrates with use of high pressure dc‐sputtering. A number of complementary methods: X‐ray diffraction (XRD), Rutherford backscattering (RBS), high resolution transmission electron microscopy (HRTEM), time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS), atomic force microscopy (AFM), and X‐ray photoemission spectroscopy (XPS) was used to characterize both in‐depth and lateral structure features. Fully strained thin films were obtained with a tetragonal lattice cell pronouncedly elongated in an out‐of‐plane direction, independent on details of deposition conditions. Growth types varied from a single layer‐by‐layer two‐dimensional (2D) mode to three‐dimensional (3D) spiral precipitations of different size. Interface layer between the substrate and the thin film as well as its surface suffer from considerable deviations from nominal stoichiometry, basically resulting from Ru deficiency. Samples stored under normal conditions undergo further compositional change of the surface region. The process of aging, extended over several days, involves incorporation of water and carbon dioxide present in an ambient atmosphere and a subsequent surface reconstruction. For samples deposited on SrTiO 3 the valence band is indicative of a metallic character of the sample interior regardless of Ca content. The heterogeneous in‐depth profile of the thin films is extremely important in fabrication of nanodevices, especially those based on ultrathin layers. magnified image Examination summary of Sr 0.8 Ca 0.2 RuO 3 thin films, deposited on SrTiO 3 , methods used and essential conclusions.

Tetragonal crystal system

Rutherford backscattering spectrometry

10.1002/pssa.201228217

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Korozja wyrobów wysokoglinowych pracujących w piecu szklarskim

Prace Instytutu Ceramiki i Materiałów Budowlanych (2011)

T. Wala Bronisław Psiuk Jacek Podwórny M. Burdyl

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マグネシア耐火物の特性に及ぼすジルコニア添加の影響【Powered by NICT】

Ceramics International (2016)

Kusiorowski Robert Wojsa Jozef Bronisław Psiuk Wala Teresa

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Badania fotoemisyjne złącz Pt/SrTiO3

Bronisław Psiuk J. Szade K. Szot

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Fused magnesia-zirconia co-clinker for fired refractories

Ceramics International (2017)

Robert Kusiorowski Bronisław Psiuk

10.1016/j.ceramint.2017.07.175

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Citations (7)