Publication: MAX phase Ti2AlC foams using a leachable space-holder material
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2015-10-15
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Elsevier
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Abstract
MAX phase foams from commercial Ti2AlC powder were prepared by a novel powder processing method
using raw sugar as space-holder. Manufacturing MAX phase foams using this method involves mixing
Ti2AlC powder with raw sugar, pressing the mixture to form a green body followed by space-holder
removal and sintering. Green bodies were formed using cold uniaxial pressing and porosity was
controlled varying the size and amount of the raw sugar space-holder. Three different space-holder
particles sizes in the range of 250-1000 μm and four different volume amounts (20%, 40%, 60% and
80%) of space-holder were studied. The foams produced were characterized, and the size distribution and
amount of resulting porosity was compared with the theoretically expected values. Optimal conditions
using this novel processing technique for this material were established aiming towards controlling the
final microstructures and properties, of porous Ti2AlC MAX phase.
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Keywords
MAX phases, Ti2AlC, porous materials, eco-friendly processing, water-soluble space-holder
Bibliographic citation
Velasco, Beatriz; Gordo Elena; Tsipas, Sophia Alexandra (2015). MAX phase Ti2AlC foams using a leachable space-holder material, in Journal of Alloys and Compounds, Volume: 646, Pages: 1036–1042