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Microstructure and properties of Ti5Si3-based porous intermetallic compounds fabricated via combustion synthesis
School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou.
School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou.
School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou.
School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou.
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2014 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 612, p. 337-342Article in journal (Refereed) Published
Abstract [en]

Porous titanium silicides (Ti5Si3-based) were produced by combustion synthesis process from reaction mixtures of titanium to silicon in varying molar ratios. The effects of combustion characteristics of the reaction mixtures on the phase formation, microstructure, porosity, pore size and compressive strength of porous titanium silicide intermetallic compounds were investigated. The results showed that the flame-front propagation velocity and temperature of the combustion reaction were the maximum for the reaction mixture containing Ti and Si in the ratio of 5 to 3 (Ti5Si3), 32.7 mm/s and 2205 K, respectively. X-ray diffraction analysis confirmed that the dominant phase formed was Ti5Si3 in all combustion synthesized porous intermetallic compounds. Ti5Si3-based intermetallic compounds were highly porous. The porosity and pore size of these intermetallics were dependent on the initial composition of the reaction mixture. The total and open porosities of Ti5Si3-based intermetallics varied from 33 to 61% and 17 to 55%, respectively. The porous titanium silicide intermetallic materials displayed high mechanical strength, in the range of 6-35 MPa, duly required for their use as filters.

Place, publisher, year, edition, pages
2014. Vol. 612, p. 337-342
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-5582DOI: 10.1016/j.jallcom.2014.05.216ISI: 000339692300053Scopus ID: 2-s2.0-84903178402Local ID: 3b6f1f07-a204-415c-ab2a-0e2bb5f290e2OAI: oai:DiVA.org:ltu-5582DiVA, id: diva2:978456
Note
Validerad; 2014; 20140610 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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