Název: Microstructural Study and Analysis of Hard Zinc
Autoři: Luptáková, Natália ; Pešlová, F. ; Stodola, P. ; Stodola, J.
Typ dokumentu: Příspěvky z konference
Konference/Akce: International Scientific Conference on Transport Means /19./, Kaunas (LT), 20151022
Rok: 2015
Jazyk: eng
Edice: Transport Means Proceedings of the International Conference
Abstrakt: The presented work is focused on the character and morphology of the input material for the production of metallic zinc which is used in the production of ZnO through indirect pyrometallurgical processes. The input material is the key parameter in the production of high-quality zinc oxide. For the prediction of a complex production process when problematic situation may occur, the systematic analysis of the input zinc raw materials is needed. Undesirable phases in the feedstock can be identified through profound recognition of the source material and the nature of its microstructure. Chemical composition of zinc metal and zinc additives helps to detect the phases occurring in the matrix. Undesirable phases in the feedstock can form hard and brittle compounds. If these compounds diffuse into the lining during thermal processes, they become the cause of stress in metallurgical ceramics. From the microstructure viewpoint, the heterogeneity of the grain size, various morphology of intermediate phases, their layout, arrangement, etc. can be expected. The results obtained by analysis are used to minimize waste-zinc slag and to eliminate the conditions which enable the formation of the undesired product, thereby increasing the productivity of the zinc oxide production. Moreover, another important knowledge could be used for modernization and effective the process of industrial production of ZnO in practical application in military technologies.
Klíčová slova: intermediate phase; metallurgy; pyrometallurgical process; residual elements; structural phase; zinc; zinc oxide
Zdrojový dokument: TRANSPORT MEANS 2015, PTS I AND II, ISSN 1822-296X

Instituce: Ústav fyziky materiálů AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0279582

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-373416


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav fyziky materiálů
Konferenční materiály > Příspěvky z konference