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Hierarchically porous ceramics from diatomite powders by pulsed current processing
Materials Chemistry Research Group, Arrhenius Laboratory, Department of Physical, Inorganic and Structural Chemistry, Stockholm University.ORCID iD: 0000-0003-4888-6237
Materials Chemistry Research Group, Arrhenius Laboratory, Department of Physical, Inorganic and Structural Chemistry, Stockholm University.
Materials Chemistry Research Group, Arrhenius Laboratory, Department of Physical, Inorganic and Structural Chemistry, Stockholm University.
2009 (English)In: Journal of The American Ceramic Society, ISSN 0002-7820, E-ISSN 1551-2916, Vol. 92, no 2, p. 338-343Article in journal (Refereed) Published
Abstract [en]

Hierarchically porous ceramic monoliths have been fabricated by pulsed current processing (PCP) of diatomite powders. The partial sintering behavior of the porous diatomite powders during PCP or spark plasma sintering was evaluated at temperatures between 600° and 850°C. Scanning electron microscopy and mercury porosimetry measurements showed that the PCP method was able to bond the diatomite powder together into relatively strong monoliths without significantly destroying the internal pores of the diatomite powder at a temperature range of 700°–750°C. Little fusion at the particle contact points occurred at temperatures below 650°C while the powder showed partial melting and collapse of both the interparticle pores and the internal structure at temperatures above 800°C.

Place, publisher, year, edition, pages
2009. Vol. 92, no 2, p. 338-343
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-11359DOI: 10.1111/j.1551-2916.2008.02882.xLocal ID: a4e69910-f9e9-4262-8314-cead795433dcOAI: oai:DiVA.org:ltu-11359DiVA, id: diva2:984309
Note
Upprättat; 2009; 20150416 (farakh)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Akhtar, Farid

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