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Carbon atmosphere effect on on Ti3SiC2 based composites made from TiC/Si powders
Luleå University of Technology, Department of Engineering Sciences and Mathematics.
Luleå tekniska universitet.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-3661-9262
2010 (English)In: Ceramics International, ISSN 0272-8842, E-ISSN 1873-3956, Vol. 36, no 4, p. 1259-1263Article in journal (Refereed) Published
Abstract [en]

The previous termeffect of carbonnext term activity and CO pressure in the furnace previous termatmospherenext term is investigated with respect to the phase reactions during heat treatment of TiC/Si powders. Special attention is given to the production and decomposition of Ti3SiC2. Samples were heated in graphite and alumina furnaces, connected to a dilatometer which enabled the in-situ analysis of the phase reactions. The phase compositions of the heat treated samples were determined by x-ray diffraction. The reducing previous termatmospherenext term of the graphite furnace enhanced the reactivity of the starting powder and enabled phase reactions to take place at a lower temperature than in the alumina furnace. TiSi2 and SiC phases formed at temperatures below the melting point of Si and were continuously consumed at higher temperatures. Ti3SiC2 formed at the melting point of Si regardless of furnace previous termatmosphere.next term No decomposition of the Ti3SiC2 was observed in either furnace.

Place, publisher, year, edition, pages
2010. Vol. 36, no 4, p. 1259-1263
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-8344DOI: 10.1016/j.ceramint.2010.01.016ISI: 000277745100013Scopus ID: 2-s2.0-77950521386Local ID: 6d8d7b80-0c2b-11df-bae5-000ea68e967bOAI: oai:DiVA.org:ltu-8344DiVA, id: diva2:981236
Note
Validerad; 2010; 20100128 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Kero, IdaAntti, Marta-Lena

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