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Article: Phase transformation during the sintering of γ-alumina and the simulated Ni-laden waste sludge

TitlePhase transformation during the sintering of γ-alumina and the simulated Ni-laden waste sludge
Authors
KeywordsCeramic Sintering
Densification
Nickel Sludge
Rietveld Refinement
Spinel
Issue Date2012
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ceramint
Citation
Ceramics International, 2012, v. 38 n. 3, p. 1879-1886 How to Cite?
AbstractThis study investigated the fundamental phase transformation process when incorporating simulated nickel-laden waste sludge by alumina-based ceramic system. To match the required sintering conditions for commercial ceramic products as a development of waste-to-resource strategy, the investigation focused on the nickel incorporation behavior of γ-alumina in moderate to low temperature sintering environments (1250-750°C) under a 3 h sintering process. X-ray diffraction (XRD) and Rietveld refinement were used to show the quantitative distribution of phases. The results demonstrated that γ-alumina interacted intensively with nickel oxide at sintering temperatures above 1000°C. Furthermore, the densification effect of the sintering process is also illustrated, as this is crucial for developing the needed mechanical strength for practical applications. The findings in this study reveal that there is good potential for achieving the stabilization of nickel by thermal treatment with a γ-alumina containing precursor via moderate ceramic sintering temperatures. © 2011 Elsevier Ltd and Techna Group S.r.l.
Persistent Identifierhttp://hdl.handle.net/10722/150655
ISSN
2015 Impact Factor: 2.758
2015 SCImago Journal Rankings: 0.865
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong Research Grants CouncilHKU 716310E
HKU 716809E
University Grants CouncilSEG_HKU10
Funding Information:

This work was financially supported by Hong Kong Research Grants Council (HKU 716310E, HKU 716809E) and University Grants Council (SEG_HKU10). The contribution of HiQ-7223 alumina by the Alcoa Corporation is gratefully acknowledged.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorWang, Yen_US
dc.contributor.authorShih, Ken_US
dc.contributor.authorJiang, Xen_US
dc.date.accessioned2012-06-26T06:06:30Z-
dc.date.available2012-06-26T06:06:30Z-
dc.date.issued2012en_US
dc.identifier.citationCeramics International, 2012, v. 38 n. 3, p. 1879-1886en_US
dc.identifier.issn0272-8842en_US
dc.identifier.urihttp://hdl.handle.net/10722/150655-
dc.description.abstractThis study investigated the fundamental phase transformation process when incorporating simulated nickel-laden waste sludge by alumina-based ceramic system. To match the required sintering conditions for commercial ceramic products as a development of waste-to-resource strategy, the investigation focused on the nickel incorporation behavior of γ-alumina in moderate to low temperature sintering environments (1250-750°C) under a 3 h sintering process. X-ray diffraction (XRD) and Rietveld refinement were used to show the quantitative distribution of phases. The results demonstrated that γ-alumina interacted intensively with nickel oxide at sintering temperatures above 1000°C. Furthermore, the densification effect of the sintering process is also illustrated, as this is crucial for developing the needed mechanical strength for practical applications. The findings in this study reveal that there is good potential for achieving the stabilization of nickel by thermal treatment with a γ-alumina containing precursor via moderate ceramic sintering temperatures. © 2011 Elsevier Ltd and Techna Group S.r.l.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/ceraminten_US
dc.relation.ispartofCeramics Internationalen_US
dc.subjectCeramic Sinteringen_US
dc.subjectDensificationen_US
dc.subjectNickel Sludgeen_US
dc.subjectRietveld Refinementen_US
dc.subjectSpinelen_US
dc.titlePhase transformation during the sintering of γ-alumina and the simulated Ni-laden waste sludgeen_US
dc.typeArticleen_US
dc.identifier.emailShih, K:kshih@hkucc.hku.hken_US
dc.identifier.authorityShih, K=rp00167en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.ceramint.2011.10.015en_US
dc.identifier.scopuseid_2-s2.0-84857048823en_US
dc.identifier.hkuros205529-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84857048823&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume38en_US
dc.identifier.issue3en_US
dc.identifier.spage1879en_US
dc.identifier.epage1886en_US
dc.identifier.isiWOS:000301611700018-
dc.publisher.placeUnited Kingdomen_US
dc.relation.projectSorption of Perfluorochemicals on Sediments and Sludge of Hong Kong-
dc.relation.projectEnvironmental Bio-Nano Interface (EBNI) Characterization System-
dc.relation.projectSpinel Formation in Recycling Sludge-Incineration Ash for Fabrication of Ceramic Materials-
dc.identifier.scopusauthoridWang, Y=53464239900en_US
dc.identifier.scopusauthoridShih, K=14072108900en_US
dc.identifier.scopusauthoridJiang, X=53463625500en_US
dc.identifier.citeulike9917237-

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