Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Hana Ovčačíková"'
Autor:
Marek Velička, René Pyszko, Mario Machů, Jiří Burda, Tomáš Kubín, Hana Ovčačíková, David Rigo
Publikováno v:
Materials, Vol 16, Iss 15, p 5302 (2023)
The continuous steel casting process must simultaneously meet the requirements for production performance, quality and safety against breakouts. Knowing the thickness of the solidified shell, particularly at the exit of the mould, is useful for the c
Externí odkaz:
https://doaj.org/article/add6cfb832a846de89e4ae19a2f62a1f
Publikováno v:
Minerals, Vol 13, Iss 3, p 357 (2023)
The main problem affecting the life of refractory linings in furnaces is alkaline corrosion formed during biomass combustion, especially in systems with SiO2–Al2O3. This corrosion effect is very intensive compared to using conventional technologies
Externí odkaz:
https://doaj.org/article/fb5cb22b5ce848caa5c93e1d4479da81
Autor:
Hana Ovčačíková, Marek Velička, Jozef Vlček, Michaela Topinková, Miroslava Klárová, Jiří Burda
Publikováno v:
Materials, Vol 15, Iss 16, p 5796 (2022)
In terms of its chemical composition, biomass is a very complex type of fuel. Its combustion leads to the formation of materials such as alkaline ash and gases, and there is evidence of the corrosive effect this process has on refractory linings, thu
Externí odkaz:
https://doaj.org/article/899e1e9541214e20bb48c2feb2cf4298
Publikováno v:
Minerals, Vol 11, Iss 3, p 313 (2021)
This study is focused on the treatment of waste sludge from a zinc chloride production in order to prepare iron-rich pigments usable for a production of glazes. In galvanizing plants, yellow waste sludge containing significant amount of ZnO, Cl, and
Externí odkaz:
https://doaj.org/article/8f58430943534135afb39682d144e392
Autor:
Jozef Vlček, Michaela Topinková, Miroslava Klárová, Petra Maierová, Hana Ovčačíková, Vlastimil Matějka, Alexandr Martaus, Veronika Blahůšková
Publikováno v:
Minerals, Vol 11, Iss 2, p 197 (2021)
Metakaolin (MK) prepared by the calcination of kaolin at 550 °C and fly ash (FA) from the combustion of black coal in a granulating boiler were used to prepare unfired ceramic bonding systems via the alkali activation process. A long-term stability
Externí odkaz:
https://doaj.org/article/ab46e3093d72467c84c498f99d67afef
The Effect of Temperature and Milling Process on Steel Scale Utilized as a Pigment for Ceramic Glaze
Publikováno v:
Materials, Vol 13, Iss 8, p 1814 (2020)
This study is focused on the evaluation of the re-utilizability of scale originated during the steel casting and steel rolling processes as a pigment for glazes. Non-oiled scale with Fe3O4 as the major phase were used as a coloring component of trans
Externí odkaz:
https://doaj.org/article/e8ef5b8f28a342e3b760b5a5bc32622c
Autor:
VÁCLAVA TOMKOVÁ, FILIP OVČAČÍK, JOZEF VLČEK, HANA OVČAČÍKOVÁ, MICHAELA TOPINKOVÁ, MARTIN VAVRO, PETR MARTINEC
Publikováno v:
Ceramics-Silikáty, Vol 56, Iss 2, Pp 168-176 (2012)
Alkali activated binders (AAB) and composites from suitable latent hydraulic raw materials represent an alternative to materials based on Portland cements. The paper deals with possibilities to influence functional parameters of AAB by setting the mi
Externí odkaz:
https://doaj.org/article/cc870e2db87346faa3c419c0de08ada7
Autor:
Hana Ovčačíková, Jonáš Tokarský, Petra Maierová, Petra Matějková, Marek Velička, Jiří Olšanský
Publikováno v:
Journal of Sustainable Metallurgy. 8:1961-1974
Publikováno v:
AIP Conference Proceedings.
Autor:
Jiří Fiedor, Barbora Grycová, Veronika Blahůškova, Pavel Leštinský, Marek Velička, Hana Ovčačíková
Publikováno v:
THE PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON MARITIME EDUCATION AND TRAINING (The 5th ICMET) 2021.