@article{MTMT:34855918, title = {Eltérő kezelősók és Al-5%Ti-1%B előötvözet-adagolás olvadékminőségre gyakorolt hatásának összehasonlító vizsgálata EN AC-45500 ötvözet esetén}, url = {https://m2.mtmt.hu/api/publication/34855918}, author = {Bogoly, Levente and Mende, Tamás and Fegyverneki, György and Gyarmati, Gábor}, journal-iso = {BKL}, journal = {BÁNYÁSZATI ÉS KOHÁSZATI LAPOK (2023-)}, volume = {157}, unique-id = {34855918}, year = {2024}, eissn = {2498-9322}, pages = {2-11} } @article{MTMT:34829397, title = {An Improved Model for Molar Volumes of Ti-Carbide, Ti-Nitride and Ti-Carbo-Nitride}, url = {https://m2.mtmt.hu/api/publication/34829397}, author = {Zhang, Huaqing and Du, Yong and Kaptay, György}, doi = {10.1007/s11661-024-07395-8}, journal-iso = {METALL MATER TRANS A}, journal = {METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE}, unique-id = {34829397}, issn = {1073-5623}, abstract = {Molar volume of titanium carbonitride is modelled as function of composition and temperature by two-sublattice model Ti 1 (C, N, Va) 1 . Deviations from the ideal solution model in Ti–TiX sections were modelled by regular solution model between X atoms and vacancies in the (X, Va) sublattice. The combined binary models can describe molar volumes of ternary Ti carbonitrides reasonably well without introducing any ternary parameters, proving a good physics behind the binary models.}, year = {2024}, eissn = {1543-1940}, orcid-numbers = {Kaptay, György/0000-0003-4419-142X} } @article{MTMT:34826648, title = {Novel MXene/PVDF nanocomposite ultrafiltration membranes for optimized Eriochrome black T (azo dye) removal}, url = {https://m2.mtmt.hu/api/publication/34826648}, author = {Abood, Tamara Wahid and Shabeeb, Kadhum M. and Alzubaydi, Aseel B. and Fal, Mokhatar and Lotaibi, Abdulrahman M. A and Lawal, Dahiru U. and Hernádi, Klára and Alsalhy, Qusay F.}, doi = {10.1016/j.dwt.2024.100311}, journal-iso = {DESALIN WATER TREAT}, journal = {DESALINATION AND WATER TREATMENT}, unique-id = {34826648}, issn = {1944-3994}, year = {2024}, eissn = {1944-3986}, pages = {100311}, orcid-numbers = {Hernádi, Klára/0000-0001-9419-689X} } @inproceedings{MTMT:34824730, title = {Quantifying Surface Topographies on Antimicrobial Copper}, url = {https://m2.mtmt.hu/api/publication/34824730}, author = {Lowe, Terry C. and Hirsch, Daniela P. and Dahl, Scott C. and Lowe, Beatrice L. and Hawkins, Clinton L. and Kailas, Naveen S. and Szűcs, Máté and Tóth, László}, booktitle = {TMS 2024 153rd Annual Meeting & Exhibition Supplemental Proceedings}, doi = {10.1007/978-3-031-50349-8_75}, unique-id = {34824730}, year = {2024}, pages = {864-874} } @article{MTMT:34788000, title = {Microstructure Effects on Anodizing High-Silicon Aluminium Alloy AlSi12Cu1(Fe) under Various Surface Conditions and Power Modes}, url = {https://m2.mtmt.hu/api/publication/34788000}, author = {Razzouk, Emel and Koncz-Horváth, Dániel and Török, Tamás}, doi = {10.3390/cryst14040352}, journal-iso = {CRYSTALS}, journal = {CRYSTALS}, volume = {14}, unique-id = {34788000}, abstract = {This study investigates the impact of the surface characteristics and the inner close-to-surface characteristics of die-cast Al-Si-Cu alloy on the anodizing process under steady-state voltage and current modes. Samples of industrial-pressure die-cast aluminium–silicon alloy AlSi12Cu1(Fe) underwent anodization in as-die-cast surface conditions and after surface-grinding operations with material removal of 0.1, 0.5, and 1 mm. After surface grinding operations, the anodic layer thickness was significantly greater when subjected to a steady-state voltage of 35 V compared to that formed under a steady-state voltage of 20 V, showing an increase in the range of 2 to 2.5 times more than the thickness at 20 V. Additionally, anodizing under steady-state current mode (1.6 A·dm−2) yielded thicker layers compared to steady-state voltage mode (35 V, 1.6 A·dm−2 max) across all surface states (as-cast, ground). SEM-EDS analysis with element mapping revealed the subsequent effects of element distribution on anodic layer growth and structure. Grinding prior to anodization resulted in larger cavity sizes and lengths, attributed to microstructural variations induced by grinding. Grinding also exposed areas with slower solidification rates, fostering a homogeneous Al phase that facilitated enhanced oxide growth. Moreover, the formation of oxide was directly correlated with the presence of alloying elements, particularly silicon particles, which influenced the presence of the unanodized aluminium regions.}, year = {2024}, eissn = {2073-4352}, pages = {352-366} } @article{MTMT:34762909, title = {Experimental and theoretical aspects of the growth of vertically aligned CNTs by CCVD on AZO substrate}, url = {https://m2.mtmt.hu/api/publication/34762909}, author = {Nánai, Lilla and Németh, Zoltán and Kaptay, György and Hernádi, Klára}, doi = {10.1038/s41598-024-57862-w}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {14}, unique-id = {34762909}, issn = {2045-2322}, abstract = {An efficient and reproducible growth of vertically aligned carbon nanotubes by CCVD requires accurate and specific setting of the synthesis parameters and the properties of catalyst thin layers. In this work, the growth of vertically aligned carbon nanotubes onto AZO (= aluminum doped zinc oxide) glass substrate covered by Al 2 O 3 and Fe-Co catalyst layer system is presented. Investigation of the effect of catalyst composition and synthesis temperature on CVD growth revealed the optimum condition of the synthesis. The analysis of as-prepared samples by SEM, TEM and Raman spectroscopy was carried out to prove the structure and quality of carbon deposit. Theoretical considerations have supported speculative ideas about the role of the support layer, the transformation of the catalyst layer in the presence of hydrogen gas and the growth mechanism of carbon nanotubes. The mechanism of CNT growth is modelled and the order of magnitude of experimentally observed vertical linear growth rate of CNT (several nm/s) is reproduced.}, year = {2024}, eissn = {2045-2322}, orcid-numbers = {Nánai, Lilla/0000-0002-3216-2210; Németh, Zoltán/0000-0001-7871-3818; Kaptay, György/0000-0003-4419-142X; Hernádi, Klára/0000-0001-9419-689X} } @article{MTMT:34753277, title = {Experimental and numerical study of a photovoltaic/thermal system cooled by metal oxide nanofluids}, url = {https://m2.mtmt.hu/api/publication/34753277}, author = {Alktranee, Mohammed and Al-Yasiri, Qudama and Shehab, Mohammed and Bencs, Péter and Németh, Zoltán and Hernádi, Klára}, doi = {10.1016/j.aej.2024.03.050}, journal-iso = {ALEX ENG J}, journal = {ALEXANDRIA ENGINEERING JOURNAL}, volume = {94}, unique-id = {34753277}, issn = {1110-0168}, year = {2024}, eissn = {2090-2670}, pages = {55-67}, orcid-numbers = {Al-Yasiri, Qudama/0000-0001-6576-5221; Bencs, Péter/0000-0001-7342-4822; Németh, Zoltán/0000-0001-7871-3818; Hernádi, Klára/0000-0001-9419-689X} } @article{MTMT:34751681, title = {Effects of CCVD parameters on the growth of VACNT over AZO substrate}, url = {https://m2.mtmt.hu/api/publication/34751681}, author = {Nánai, Lilla and Czagány, Máté and Hernádi, Klára}, doi = {10.1016/j.ceramint.2024.03.200}, journal-iso = {CERAM INT}, journal = {CERAMICS INTERNATIONAL}, volume = {50}, unique-id = {34751681}, issn = {0272-8842}, year = {2024}, eissn = {1873-3956}, pages = {749-757}, orcid-numbers = {Nánai, Lilla/0000-0002-3216-2210; Hernádi, Klára/0000-0001-9419-689X} } @article{MTMT:34751010, title = {The Angular Velocity as a Function of the Radius in Molten Ga75In25 Alloy Stirred Using a Rotation Magnetic Field}, url = {https://m2.mtmt.hu/api/publication/34751010}, author = {Roósz, András and Rónaföldi, Arnold and Kissné Svéda, Mária and Veres, Zsolt}, doi = {10.3390/met14030368}, journal-iso = {METALS-BASEL}, journal = {METALS}, volume = {14}, unique-id = {34751010}, year = {2024}, eissn = {2075-4701}, orcid-numbers = {Kissné Svéda, Mária/0000-0003-0655-1711} } @article{MTMT:34738644, title = {Electrochemical diagrams showing equilibrium cathodic phases and their compositions as function of electrolyte composition and type of alloy phase diagram}, url = {https://m2.mtmt.hu/api/publication/34738644}, author = {Kaptay, György}, doi = {10.1016/j.electacta.2024.144002}, journal-iso = {ELECTROCHIM ACTA}, journal = {ELECTROCHIMICA ACTA}, volume = {484}, unique-id = {34738644}, issn = {0013-4686}, abstract = {In this paper the dependence of the elemental and phase compositions of the binary A-B cathodic deposits are computed by constructing “Electrochemical Diagrams”, abbreviated as ECDs, which potentially have a high practical significance. An ECD shows phases and compositions of cathodic alloy products as function of electrolyte composition at fixed temperature, pressure and at low current density upon galvano-static electrochemical co-deposition of components A-B from the same electrolyte on an inert cathode. The following rules are established here to construct the ECDs for binary A-B alloys: i). among all possible cathodic phases the one will be electrodeposited that provides the least negative cathodic deposition potential, ii). two or three (but not four or more) phases can be co-deposited on the cathode if their equilibrium cathodic potentials are equal and are the least negative among all possible cathodic phases, iii). the equilibrium compositions of solid and liquid A-B alloys that form on the cathode can be found from the condition of equality of the partial equilibrium cathodic potentials of components A and B. Based on the above three rules, ECDs are constructed for some basic types of binary equilibrium alloy phase diagrams with the composition of the alloy on its y-axes as function of the ionic composition of the electrolyte on its x-axes. In all cases the clear connection is shown between the ECDs and their corresponding alloy phase diagrams. The following geometric features are established for ECDs: i). solution phases are characterized by continuous curves, ii). phases of fixed compositions are characterized by horizontal lines, iii). two-phase mixtures are characterized by vertical lines, iv). three-phase equilibria are characterized by single points along the vertical lines corresponding to the two-phase equilibria of the parent phases of the third phase. It is shown that the restricted phase rule of Gibbs (= the maximum number of coexisting phases = the number of independent components + 1) is valid also for the ECDs. As examples, ECDs are calculated for the Ni-Co system and for the Ti-B system and good agreement is found between these calculated diagrams and the experimental data.}, keywords = {phase diagram; Binary cathodic deposit; Galvano-static; Electrolyte composition}, year = {2024}, eissn = {1873-3859}, orcid-numbers = {Kaptay, György/0000-0003-4419-142X} }