• Exploring the Piezoelectric Properties of Bismuth Ferrite Thin Films Using Piezoelectric Force Microscopy: A Case Study 

  Misiurev, Denis; Kaspar, Pavel; Sobola, Dinara; Papež, Nikola; Hekmat, Saleh; Holcman, Vladimír (MDPI, 2023-04-18)

  Over recent decades, the scientific community has managed to make great progress in the theoretical investigation and practical characterization of bismuth ferrite thin films. However, there is still much work to be completed ...

• Case Study of Polyvinylidene Fluoride Doping by Carbon Nanotubes 

  Kaspar, Pavel; Sobola, Dinara; Částková, Klára; Dallaev, Rashid; Šťastná, Eva; Sedlák, Petr; Knápek, Alexandr; Trčka, Tomáš; Holcman, Vladimír (MDPI, 2021-03-15)

  Modern material science often makes use of polyvinylidene fluoride thin films because of various properties, like a high thermal and chemical stability, or a ferroelectric, pyroelectric and piezoelectric activity. Fibers ...

• Structure Tuning and Electrical Properties of Mixed PVDF and Nylon Nanofibers 

  Černohorský, Petr; Pisarenko, Tatiana; Papež, Nikola; Sobola, Dinara; Ţălu, Ştefan; Částková, Klára; Kaštyl, Jaroslav; Macků, Robert; Škarvada, Pavel; Sedlák, Petr (MDPI, 2021-10-15)

  The paper specifies the electrostatic spinning process of specific polymeric materials, such as polyvinylidene fluoride (PVDF), polyamide-6 (PA6, Nylon-6) and their combination PVDF/PA6. By combining nanofibers from two ...

• Preserving Metamagnetism in Self-Assembled FeRh Nanomagnets 

  Motyčková, Lucie; Arregi Uribeetxebarria, Jon Ander; Staňo, Michal; Průša, Stanislav; Částková, Klára; Uhlíř, Vojtěch (AMER CHEMICAL SOC, 2023-02-15)

  Preparing and exploiting phase-change materials in the nanoscale form is an ongoing challenge for advanced material research. A common lasting obstacle is preserving the desired functionality present in the bulk form. Here, ...

• Transparent LiOH-doped magnesium aluminate spinel produced by spark plasma sintering: Effects of heating rate and dopant concentration 

  Pouchlý, Václav; Talimian, Ali; Kaštyl, Jaroslav; Chvíla, Martin; Ščasnovič, Erik; Beltran, Ana Maria; Lozano , Juan Gabriel; Galusek, Dušan (Elsevier, 2023-07-01)

  The effects of LiOH doping of magnesium aluminate spinel powders and various Spark Plasma Sintering (SPS) schedules on densification behavior and final transparency of polycrystalline magnesium aluminate spinel were studied. ...

• Characterization and Evaluation of Engineered Coating Techniques for Different Cutting Tools-Review 

  Dabees, Sameh; Mirzaei, Saeed; Kaspar, Pavel; Holcman, Vladimír; Sobola, Dinara (MDPI, 2022-08-01)

  Coatings are now frequently used on cutting tool inserts in the metal production sector due to their better wear resistance and heat barrier effect. Protective hard coatings with a thickness of a few micrometers are created ...

• Interpretation of field emission current–voltage data: Background theory and detailed simulation testing of a user-friendly webtool 

  Allaham, Mohammad; G. Forbes, Richard; Knápek, Alexandr; Sobola, Dinara; Burda, Daniel; Sedlák, Petr; Mousa, Marwan (Elsevier, 2022-05-19)

  In field electron emission (FE) studies, interpretation of measured current–voltage characteristics and extraction of emitter characterization parameters are usually carried out within the framework of “smooth planar ...

• Macroporous bioceramic scaffolds based on tricalcium phosphates reinforced with silica: microstructural, mechanical, and biological evaluation 

  Novotná, Lenka; Chlup, Zdeněk; Jaroš, Josef; Částková, Klára; Drdlík, Daniel; Pospíšil, Jakub; Hampl, Aleš; Koutná, Irena; Cihlář, Jaroslav (Informa, 2022-03-27)

  The positive effect of silica on microstructural, mechanical and biological properties of calcium phosphate scaffolds was investigated in this study. Scaffolds containing 3D interconnected spherical macropores with diameters ...

• Triboelectric Response of Electrospun Stratified PVDF and PA Structures 

  Tofel, Pavel; Částková, Klára; Říha, David; Sobola, Dinara; Papež, Nikola; Kaštyl, Jaroslav; Talu, Stefan; Hadaš, Zdeněk (MDPI, 2022-01-22)

  Utilizing the triboelectric effect of the fibrous structure, a very low cost and straightforward sensor or an energy harvester can be obtained. A device of this kind can be flexible and, moreover, it can exhibit a better ...

• Comprehensive characterization of PVDF nanofibers at macro- and nanolevel 

  Pisarenko, Tatiana; Papež, Nikola; Sobola, Dinara; Ţălu, Ştefan; Částková, Klára; Škarvada, Pavel; Macků, Robert; Ščasnovič, Erik; Kaštyl, Jaroslav (MDPI, 2022-02-01)

  This study is focused on the characterization and investigation of polyvinylidene fluoride (PVDF) nanofibers from the point of view of macro- and nanometer level. The fibers were produced using electrostatic spinning process ...

• High-energy ball milling and spark plasma sintering of molybdenum - lanthanum oxide (Mo-La2O3) and molybdenum - lanthanum zirconate (Mo-La2Zr2O7) composite powders 

  Čelko, Ladislav; Tkachenko, Serhii; Casas Luna, Mariano; Dyčková, Lucie; Bednaříková, Vendula; Remešová, Michaela; Komarov, Pavel; Deák, Andréa; Baláž, Matej; Crawford, Deborah E.; Díaz de la Torre, Sebastian; Bodoki, Ede; Cihlář, Jaroslav (Elsevier, 2022-01-01)

  The current study is focused on the preparation of Mo-10 vol%La2O3 and Mo-10 vol% La2Zr2O7 composite powders via low- and high-energy ball milling approaches as potential candidates for near-future high-temperature structural ...

• Thin high-strength zirconia tapes with extreme flexibility 

  Šťastný, Přemysl; Chlup, Zdeněk; Roupcová, Pavla; Trunec, Martin (Taylor & Francis, 2021-07-03)

  The yttria stabilized zirconia ceramics (Y-TZP) are known for their high fracture toughness and high strength. Due to their excellent mechanical properties, the thin zirconia tapes can possess extraordinary behavior - ...

• Surface Analyses of PVDF/NMP/[EMIM][TFSI] Solid Polymer Electrolyte 

  Sedlák, Petr; Sobola, Dinara; Gajdoš, Adam; Dallaev, Rashid; Nebojsa, Alois; Kuberský, Petr (MDPI, 2021-08-11)

  Thermal treatment conditions of solid polymer polymer electrolyte (SPE) were studied with respect to their impact on the surface morphology, phase composition and chemical composition of an imidazolium ionic-liquid-based ...

• Lumbar Interbody Fusion Conducted on a Porcine Model with a Bioresorbable Ceramic/Biopolymer Hybrid Implant Enriched with Hyperstable Fibroblast Growth Factor 2 

  Krtička, Milan; Plánka, Ladislav; Vojtová, Lucy; Nekuda, Vladimír; Šťastný, Přemysl; Sedláček, Radek; Břínek, Adam; Kavková, Michaela; Göpfert, Eduard; Hedvičáková, Věra; Rampichová, Michaela; Křen, Leoš; Lišková, Květoslava; Ira, Daniel; Dorazilová, Jana; Suchý, Tomáš; Zikmund, Tomáš; Kaiser, Jozef; Starý, David; Faldyna, Martin; Trunec, Martin (MDPI, 2021-06-25)

  An experimental animal study was designed to investigate the intervertebral fusion efficiency and safety of a bioresorbable ceramic/biopolymer hybrid implant enriched with FGF2-STAB(R) in comparison with a tricortical bone ...

• Characterization of GaAs Solar Cells under Supercontinuum Long-Time Illumination 

  Papež, Nikola; Dallaev, Rashid; Kaspar, Pavel; Sobola, Dinara; Škarvada, Pavel; Ţălu, Ştefan; Ramazanov, Shikhgasan; Nebojsa, Alois (MDPI, 2021-01-19)

  This work is dedicated to the description of the degradation of GaAs solar cells under continuous laser irradiation. Constant and strong exposure of the solar cell was performed over two months. Time-dependent electrical ...

• Overview of the Current State of Gallium Arsenide-Based Solar Cells 

  Papež, Nikola; Dallaev, Rashid; Ţălu, Ştefan; Kaštyl, Jaroslav (MDPI, 2021-06-04)

  As widely-available silicon solar cells, the development of GaAs-based solar cells has been ongoing for many years. Although cells on the gallium arsenide basis today achieve the highest efficiency of all, they are not ...

• Ion Distributions at ElectrifiedWater-Organic Interfaces: PB-PMF Calculations and Impedance Spectroscopy Measurements 

  Hou, Binyang; Bu, Wei; Luo, Guangming; Vanýsek, Petr; Schlossman, Mark (The Electrochemical Society, 2015-09-07)

  The interface between two immiscible electrolyte solutions consisting of alkali chlorides in water and the organic electrolyte BTPPATPFB in 1,2-dichloroethane is characterized with X-ray reflectivity, interfacial tension ...

• Water-born 3Dnanofiber mats usingcost-effectivecentrifugal spinning: comparison with electrospinnig process: A complex study 

  Říhová, Martina; Ince, Ahmet Erdem; Čičmancová, Veronika; Hromádko, Luděk; Částková, Klára; Pavliňák, David; Vojtová, Lucy; Macák, Jan (WILEY, 2021-02-05)

  A comparison of the electrostatic and centrifugal spinning of poly(vinyl alcohol) and poly(vinyl pyrrolidone) is shown in terms of the resulting fiber morphology and the process conditions. Specific parameters of centrifugal ...

• PVDF Fibers Modification by Nitrate Salts Doping 

  Sobola, Dinara; Kaspar, Pavel; Částková, Klára; Dallaev, Rashid; Papež, Nikola; Sedlák, Petr; Trčka, Tomáš; Orudzhev, Farid; Kaštyl, Jaroslav; Weiser, Adam; Knápek, Alexandr; Holcman, Vladimír (MDPI, 2021-07-24)

  The method of inclusion of various additives into a polymer depends highly on the material in question and the desired effect. In the case of this paper, nitride salts were introduced into polyvinylidene fluoride fibers ...

• Electrical and optical characterization of Os-substituted rare-earth orthoferrite YbFeO3-gamma powders 

  Polat, Özgür; Coskun, Mustafa; Sobola, Dinara; Kurt, B. Zengin; Caglar, Mujdat; Turut, Abduelmecit (Springer Nature, 2021-01-02)

  The electrical properties of Os-doped YbFeO3 (YbFO) powders prepared by solid-state reaction have been studied by Impedance Spectrometer/Impedance Spectrometer. SEM, XPS and Raman spectroscopy were utilized for understanding ...

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