Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Jozef Kraxner"'
Autor:
Marzieh Ghadamyari, Róbert Klement, Hossein Ebrahim Hosseini, Milan Parchovianský, Jozef Kraxner, Dušan Galusek, Sathya Narayanasamy, Erwin Hack, Gurdial Blugan, Monika Michálková
Publikováno v:
Open Ceramics, Vol 19, Iss , Pp 100654- (2024)
Achieving full-spectrum lighting is a major challenge for phosphor-converted light-emitting diodes (pc-LEDs), which are crucial for solid-state lighting. This study presents the synthesis of polycrystalline Eu-doped Y3Al5O12 (YAG) phosphors through a
Externí odkaz:
https://doaj.org/article/7ec10aa6d99947a1a75759c856a3c1d3
Autor:
Monika Michalkova, Jozef Kraxner, Mahmoud Mokhtar, Palkova Helena, Ghadamyari Marzieh, Prnova Anna, Galusek Dusan
Publikováno v:
Ceramics-Silikáty, Vol 68, Iss 2, Pp 174-180 (2024)
The presence of residual carbon in powder precursors prepared using the sol-gel method can pose significant challenges in producing ceramics and glasses of high quality. In the case of glass, carbon dioxide formation during the glass-melt heating pro
Externí odkaz:
https://doaj.org/article/50cf816023484932b400c66283b526eb
Autor:
Mokhtar Mahmoud, Jozef Kraxner, Akansha Mehta, Hamada Elsayed, Dušan Galusek, Enrico Bernardo
Publikováno v:
Heliyon, Vol 10, Iss 2, Pp e24737- (2024)
Novel and eco-friendly solutions are extensively needed for wastewater treatment. This work capitalizes on the combination of waste vitrification and additive manufacturing to produce an efficient photocatalyst for the specific purpose. Fine powders
Externí odkaz:
https://doaj.org/article/e216e2f60dbb4234b465426ee56c8303
Publikováno v:
Heliyon, Vol 9, Iss 8, Pp e18221- (2023)
A porous membrane was developed through alkali activation of pharmaceutical boro-alumino-silicate glass powders suspended in diluted NaOH and KOH aqueous solutions (2.5 M). A consolidated porous structure was obtained by the binding of unreacted part
Externí odkaz:
https://doaj.org/article/baf28a413d9841b1a7a7ccc951701409
Publikováno v:
Materials, Vol 15, Iss 19, p 6823 (2022)
Additive manufacturing (AM) technologies enable the fabrication of objects with complex geometries in much simpler ways than conventional shaping methods. With the fabrication of recyclable filters for contaminated waters, the present work aims at ex
Externí odkaz:
https://doaj.org/article/3916fae349664b568d1ac89015432817
Autor:
Hamada Elsayed, Rachele Bertolini, Lisa Biasetto, Paulina Ożóg, Jozef Kraxner, Dušan Galusek, Enrico Bernardo
Publikováno v:
Polymers, Vol 14, Iss 19, p 4016 (2022)
‘Silica-defective glasses’, combined with a silicone binder, have been already shown as a promising solution for the manufacturing of glass–ceramics with complex geometries. A fundamental advantage is the fact that, after holding glass powders
Externí odkaz:
https://doaj.org/article/bcbd5768ed18448ea0bff87df753f89c
Autor:
Akansha Mehta, Khaoula Karbouche, Jozef Kraxner, Hamada Elsayed, Dušan Galusek, Enrico Bernardo
Publikováno v:
Materials, Vol 15, Iss 11, p 3784 (2022)
The present COVID-19 emergency has dramatically increased the demand for pharmaceutical containers, especially vials. End-of-life containers, however, cannot be easily recycled in the manufacturing of new articles. This paper presents some strategies
Externí odkaz:
https://doaj.org/article/bb30de14d02c4dc48942ac6a58ff715d
Autor:
Mokhtar Mahmoud, Jozef Kraxner, Hana Kaňková, Miroslava Hujová, Si Chen, Dušan Galusek, Enrico Bernardo
Publikováno v:
Materials, Vol 15, Iss 3, p 1043 (2022)
Fiber glass waste (FGW) was subjected to alkali activation in an aqueous solution with different concentrations of sodium/potassium hydroxide. The activated materials were fed into a methane–oxygen flame with a temperature of around 1600 °C. X-ray
Externí odkaz:
https://doaj.org/article/ad070c6127bd4373ba10106a11896d49
Autor:
Arish Dasan, Jozef Kraxner, Luca Grigolato, Gianpaolo Savio, Hamada Elsayed, Dušan Galusek, Enrico Bernardo
Publikováno v:
Journal of Functional Biomaterials, Vol 13, Iss 1, p 8 (2022)
The present study illustrates the manufacturing method of hierarchically porous 3D scaffolds based on åkermanite as a promising bioceramic for stereolithography. The macroporosity was designed by implementing 3D models corresponding to different lat
Externí odkaz:
https://doaj.org/article/e32f917d918a4124a349c23c22fd9b40
Autor:
Arish Dasan, Paulina Ożóg, Jozef Kraxner, Hamada Elsayed, Elena Colusso, Luca Grigolato, Gianpaolo Savio, Dusan Galusek, Enrico Bernardo
Publikováno v:
Materials, Vol 14, Iss 17, p 5083 (2021)
Additive manufacturing technologies, compared to conventional shaping methods, offer great opportunities in design versatility, for the manufacturing of highly porous ceramic components. However, the application to glass powders, later subjected to v
Externí odkaz:
https://doaj.org/article/4734f85e2943455b85571b5ee791de65