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Microstructure homogeneity control in spark plasma sintering of Al2O3 ceramics
Department of Materials and Environmental Chemistry, Stockholm University.
School of Science, Hangzhou Dianzi University, China.
Department of Materials and Environmental Chemistry.ORCID iD: 0000-0003-3060-9987
2011 (English)In: Journal of the European Ceramic Society, ISSN 0955-2219, E-ISSN 1873-619X, Vol. 31, no 1-2, 231-235 p.Article in journal (Refereed) Published
Abstract [en]

Homogeneous microstructure control in the SPS (spark plasma sintering) sintered big size Al2O3 ceramic was realized by the synergy effect of grain boundary tailoring and proper pressure profile design Two-step pressure profile itself did not show any efficient densification enhancement if no grain boundary modifier MgO added The two-step pressure profile can effectively reduce average grain size and grain size difference over the sintered specimen, while MgO doping can reduce the average grain size in the whole sintered samples Finally a general strategy to overcome the intrinsic temperature gradient in SPS is suggested

Place, publisher, year, edition, pages
Elsevier, 2011. Vol. 31, no 1-2, 231-235 p.
National Category
Ceramics
Identifiers
URN: urn:nbn:se:kth:diva-86978DOI: 10.1016/j.jeurceramsoc.2010.08.015ISI: 000284569900025OAI: oai:DiVA.org:kth-86978DiVA: diva2:501275
Note
QC 20120214Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2017-12-07Bibliographically approved

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Zhao, Zhe

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