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Plasmachemical reduction and carbidation of ilmenite
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SYSNO ASEP 0103256 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Plasmachemical reduction and carbidation of ilmenite Title Plazmochemická redukce a karbidace ilmenitu Author(s) Janča, J. (CZ)
Eliáš, M. (CZ)
Brožek, Vlastimil (UFP-V) RIDSource Title Proceedings of the 14th Joint Seminar "Development of Materials Science in Research and Education". - Praha : MAXDORF,s.r.o, 2004 / Nitsch K. ; Rodová M. - ISBN 80-7345-032-1 Pages s. 23-24 Number of pages 2 s. Action Development of Materials Science in Research and Education - DMS-RE 2004 /14./ Event date 31.08.2004-03.09.2004 VEvent location Lednice Country CZ - Czech Republic Event type CST Language eng - English Country CZ - Czech Republic Keywords ilmenite, free standing parts, plasmachemical reduction Subject RIV JH - Ceramics, Fire-Resistant Materials and Glass CEZ AV0Z2043910 - UFP-V Annotation Plasma spraying is a thermal spraying method applied mostly to produce coatings and functionally graded materials. Plasma spraying of ilmenite free-standing parts and coatings on metallic substrates has been mastered at IPP Praha. This report concerns compact ilmenite parts undergoing a reduction in hydrogen plasma, inductively and capacitive generated. In accordance with theoretical predictions, metallic iron was selectively reduced from ilmenite, while any form of hydrogen present in the plasma did not reduce titania. After the reduction, the products did not change their dimensions and shape, apart from a minute contraction (whose extent is now being measured). The thermal expansion coefficient of ilmenite is 9,98.10-6 K-1 in the 100-750°C range; for our products, it is slightly lower. The goal of further research is to find conditions to obtain anatase structure of the titania in the formed composite. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2005
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