• Deviations of the SLM produced Lattice Structures and Their Influence on Mechanical properties 

  Vrána, Radek; Koutecký, Tomáš; Červinek, Ondřej; Zikmund, Tomáš; Pantělejev, Libor; Kaiser, Jozef; Koutný, Daniel (MDPI, 2022-04-26)

  Selective laser melting (SLM) is an additive manufacturing technology suitable for producing cellular lattice structures using fine metal powder and a laser beam. However, the shape and dimensional deviations occur on the ...

• 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 ...

• TiO2 nanotube layers decorated by titania nanoparticles as anodes for Li-ion microbatteries 

  Sopha, Hanna Ingrid; Ghigo, Clement; Ng, Siow Woon; Alijani, Mahnaz; Hromádko, Luděk; Michalička, Jan; Djenizian, Thierry; Macák, Jan (Elsevier, 2022-01-15)

  In this work, the utilization of TiO2 nanotube (TNT) layers decorated with TiO2 nanoparticles (NPs) as anodes in Li-ion microbatteries is reported for the first time. Such TiO2 NPs decorated TNT layers possess an increased ...

• An Ab Initio Study of Pressure-Induced Changes of Magnetism in Austenitic Stoichiometric Ni2MnSn 

  Friák, Martin; Mazalová, Martina; Turek, Ilja; Zemanová, Adéla; Kaštil, Jiří; Kamarád, Jiří; Míšek, Martin; Arnold, Zdeněk; Schneeweiss, Oldřich; Všianská, Monika; Zelený, Martin; Kroupa, Aleš; Pavlů, Jana; Šob, Mojmír (MDPI, 2021-01-22)

  We have performed a quantum-mechanical study of a series of stoichiometric Ni2MnSn structures focusing on pressure-induced changes in their magnetic properties. Motivated by the facts that (i) our calculations give the ...

• Effect of electron localization in theoretical design of Ni-Mn-Ga based magnetic shape memory alloys 

  Zelený, Martin; Sedlák, Petr; Heczko, Oleg; Seiner, Hanuš; Veřtát, Petr; Obata, Masao; Kotani, Takao; Oda, Tatsuki; Straka, Ladislav (Elsevier, 2021-06-19)

  The precise determination of the stability of different martensitic phases is an essential task in the successful design of (magnetic) shape memory alloys. We evaluate the effect of electron delocalization correction on ...

• ALD coating of centrifugally spun polymeric fibers and postannealing: case study for nanotubular TiO2 photocatalyst 

  Říhová, Martina; Yurkevich, Oksana; Motola, Martin; Hromádko, Luděk; Spotz, Zdeněk; Zazpe Mendioroz, Raúl; Knez, Mato; Macák, Jan (Royal Society of Chemistry, 2021-08-07)

  This work describes the synthesis of highly photocatalytically active TiO2 tubes (TiTBs) by combining centrifugal spinning and atomic layer deposition (ALD). Poly(vinyl pyrrolidone) (PVP) fibers were first produced by ...

• Microstructure evolution of Cu-Fe-based immiscible alloys prepared by powder metallurgy 

  Adam, Ondřej; Jan, Vít (IOP Publishing, 2021-09-22)

  The work is focused on the preparation of bulk immiscible Cu-Fe-based alloys by powder metallurgy. Three samples with chemical composition Cu70Fe30, Cu70Fe15Co15, and Cu50Fe25Co25 were prepared by mechanical alloying and ...

• Stage I fatigue cracking in MAR-M 247 superalloy at elevated temperatures 

  Šmíd, Miroslav; Hutař, Pavel; Horník, Vít; Hrbáček, Karel; Kunz, Ludvík (Elsevier, 2016-07-21)

  Nickel base superalloys exhibit fatigue fracture behavior with features of brittle-like cleavage cracking under high cycle fatigue loading at temperatures up to approximately 800 °C. This specific fracture behavior was ...

• Microstructure modification of CGDS and HVOF sprayed CoNiCrAlY bond coat remelted by electron beam 

  Krajňáková, Petra; Čížek, Jan; Čupera, Jan; Hasegawa, Makoto; Dlouhý, Ivo (Elsevier, 2016-05-06)

  In the present work two techniques are combined to optimize bond coat properties before thermal barrier coating (TBC) application, the cold gas dynamic spraying (CGDS) and electron beam remelting (EB). Results of the work ...

• Tailoring a Refractory High Entropy Alloy by Powder Metallurgy Process Optimization 

  Moravčíková de Almeida Gouvea, Larissa; Moravčík, Igor; Pouchlý, Václav; Kováčová, Zuzana; Kitzmantel, Michael; Neubauer, Erich; Dlouhý, Ivo (MDPI, 2021-10-01)

  This paper reports the microstructural evolution and mechanical properties of a low-density Al0.3NbTa0.8Ti1.5V0.2Zr refractory high-entropy alloy (RHEA) prepared by means of a combination of mechanical alloying and spark ...

• 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 - ...

• 2D MoTe2 nanosheets by atomic layer deposition: Excellent photo-electrocatalytic properties 

  Zazpe Mendioroz, Raúl; Sopha, Hanna Ingrid; Charvot, Jaroslav; Krumpolec, Richard; Rodriguez Pereira, Jhonatan; Michalička, Jan; Mistrík, Jan; Bača, Dominik; Motola, Martin; Bureš, Filip; Macák, Jan (Elsevier, 2021-06-01)

  Herein, the synthesis of MoTe2 nanosheets by means of Atomic Layer Deposition (ALD) is demonstrated for the first time. ALD enables tight control over the thickness and the composition of the deposited material, which are ...

• 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 ...

• Temperature Dependence of Fracture Characteristics ofVariously Heat-Treated Grades of Ultra-High-Strength Steel:Experimental and Modelling 

  Pokluda, Jaroslav; Dlouhý, Ivo; Kianicová, Marta; Čupera, Jan; Horníková, Jana; Šandera, Pavel (MDPI, 2021-10-07)

  The temperature dependence of tensile characteristics and fracture toughness of the standardly heat-treated low-alloyed steel OCHN3MFA along with three additionally heat-treated grades was experimentally studied. In the ...

• Non-aqueous template-assisted synthesis of mesoporous nanocrystalline silicon orthophosphate 

  Styskalik, Aleš; Škoda, David; Moravec, Zdeněk; Roupcová, Pavla; Barnes, Craig E.; Pinkas, Jiří (Royal Society of Chemistry, 2015-01-01)

  The first synthesis of mesoporous nanocrystalline silicon orthophosphate Si5P6O25 is presented. The synthetic procedure is based on the non-hydrolytic sol-gel reaction in the presence of Pluronic P123 template and subsequent ...

• Effect of SiC particles on sinterability of Al-Zn-Mg-Cu P/M alloy 

  Rudianto, Haris; Jang, Gwang Joo; Yang, Sang Sun; Kim, Yong Jin; Dlouhý, Ivo (Institute of Metallurgy and Materials Science of Polish Academy of Sciences, Commitee on Metallurgy of Polish Academy of Sciences, 2015-05-10)

  Premix Al-5.5Zn-2.5Mg-0.5Cu alloy powder was analyzed as matrix in this research. Gas atomized powder Al-9Si with 20% volume fraction of SiC particles was used as reinforcement and added into the alloy with varied ...

• Spin wave propagation in corrugated waveguides 

  Turčan, Igor; Flajšman, Lukáš; Wojewoda, Ondřej; Roučka, Václav; Man, Ondřej; Urbánek, Michal (AIP Publishing, 2021-03-01)

  Curvature-induced effects allow us to tailor the static and dynamic response of a magnetic system with a high degree of freedom. We study corrugated magnonic waveguides deposited on a sinusoidally modulated substrate ...

• Ab initio study of properties of Co- and Cu- doped Ni-Mn-Ga alloys 

  Zelený, Martin; Sozinov, Alexei; Björkman, Torbjörn; Straka, Ladislav; Nieminen, Risto M. (Elsevier Ltd., 2015-11-06)

  The influence of Co and Cu doping on Ni-Mn-Ga alloy is investigated using the first-principles exact muffin-tin orbital method in combination with the coherent-potential approximation. The energy difference between the ...

• Ab initio study of Ni2MnGa under shear deformation 

  Zelený, Martin; Straka, Ladislav; Sozinov, Alexei (EDP Sciences, 2015-12-07)

  The effect of shear deformation on Ni2MnGa magnetic shape memory alloy has been investigated using ab initio electronic structure calculations. We used the projector-augmented wave method for the calculations of total ...

• 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 ...

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