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Article: Cost-effective macro-porous mullite-corundum ceramic membrane supports derived from the industrial grade powder

TitleCost-effective macro-porous mullite-corundum ceramic membrane supports derived from the industrial grade powder
Authors
KeywordsCeramic Membrane
Cost-Effective
Low-Temperature Sintering
Macro-Porous Support
Mullite-Corundum
Issue Date2009
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jallcom
Citation
Journal of Alloys and Compounds, 2009, v. 477 n. 1-2, p. 350-356 How to Cite?
AbstractIn order to develop cost-effective macro-porous ceramic membrane supports, the porous supports with large pore size were prepared from the coarse industrial mullite-corundum powder (M) with the mixture of kaolin and basic carbonate magnesium (KM) as sintering additive. Crystalline phase transition mechanism of the sintering additive and the supports was studied respectively by TG/DTA and XRD. The results confirm that at 1200-1400 °C α-cordierite formed from the sintering additive, and that above 1400 °C α-cordierite decomposed into mullite and liquid glassy phase. Sintering characteristic of the coarse mullite-corundum compacts was revealed as a function of KM/M mass ratio. The result indicates that the sintering ability of coarse mullite-corundum improved because of the produced liquid silica-rich glassy phase via the decomposition of KM-derived α-cordierite. In addition, the open porosity of the macro-porous mullite-corundum could be effectively tailored by choosing the KM/M mass ratio, the pore-former/M mass ratio and sintering temperature. The fabricated mullite-based macro-porous supports showed an average pore size of 26.21 μm and nitrogen flux of 2.375 × 104 m3/(m2 h), as well as good mechanical and thermal properties. © 2008 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/90946
ISSN
2015 Impact Factor: 3.014
2015 SCImago Journal Rankings: 1.006
ISI Accession Number ID
Funding AgencyGrant Number
Ministry of Science and Technology of China2003CB615700
Funding Information:

This work was financially supported by the Ministry of Science and Technology of China under contract no. 2003CB615700.

References

 

DC FieldValueLanguage
dc.contributor.authorDong, Yen_HK
dc.contributor.authorLin, Ben_HK
dc.contributor.authorXie, Ken_HK
dc.contributor.authorWang, Sen_HK
dc.contributor.authorDing, Hen_HK
dc.contributor.authorFang, Den_HK
dc.contributor.authorLiu, Xen_HK
dc.contributor.authorMeng, Gen_HK
dc.date.accessioned2010-09-17T10:10:45Z-
dc.date.available2010-09-17T10:10:45Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal of Alloys and Compounds, 2009, v. 477 n. 1-2, p. 350-356en_HK
dc.identifier.issn0925-8388en_HK
dc.identifier.urihttp://hdl.handle.net/10722/90946-
dc.description.abstractIn order to develop cost-effective macro-porous ceramic membrane supports, the porous supports with large pore size were prepared from the coarse industrial mullite-corundum powder (M) with the mixture of kaolin and basic carbonate magnesium (KM) as sintering additive. Crystalline phase transition mechanism of the sintering additive and the supports was studied respectively by TG/DTA and XRD. The results confirm that at 1200-1400 °C α-cordierite formed from the sintering additive, and that above 1400 °C α-cordierite decomposed into mullite and liquid glassy phase. Sintering characteristic of the coarse mullite-corundum compacts was revealed as a function of KM/M mass ratio. The result indicates that the sintering ability of coarse mullite-corundum improved because of the produced liquid silica-rich glassy phase via the decomposition of KM-derived α-cordierite. In addition, the open porosity of the macro-porous mullite-corundum could be effectively tailored by choosing the KM/M mass ratio, the pore-former/M mass ratio and sintering temperature. The fabricated mullite-based macro-porous supports showed an average pore size of 26.21 μm and nitrogen flux of 2.375 × 104 m3/(m2 h), as well as good mechanical and thermal properties. © 2008 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jallcomen_HK
dc.relation.ispartofJournal of Alloys and Compoundsen_HK
dc.subjectCeramic Membraneen_HK
dc.subjectCost-Effectiveen_HK
dc.subjectLow-Temperature Sinteringen_HK
dc.subjectMacro-Porous Supporten_HK
dc.subjectMullite-Corundumen_HK
dc.titleCost-effective macro-porous mullite-corundum ceramic membrane supports derived from the industrial grade powderen_HK
dc.typeArticleen_HK
dc.identifier.emailLin, B:blin@hku.hken_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jallcom.2008.09.139en_HK
dc.identifier.scopuseid_2-s2.0-67349250881en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67349250881&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume477en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage350en_HK
dc.identifier.epage356en_HK
dc.identifier.isiWOS:000266386400073-

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