Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Transparent polycrystalline alumina using spark plasma sintering: effect of Mg, Y and La doping
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
2010 (English)In: Journal of the European Ceramic Society, ISSN 0955-2219, E-ISSN 1873-619X, Vol. 30, no 6, 1335-1343 p.Article in journal (Refereed) Published
Abstract [en]

Transparent polycrystalline alumina (PCA) is a promising replacement for sapphire. Its optical properties however are highly dependent on thegrain size and residual porosity which need to be controlled for real inline transmittances (RIT), that are high enough for possible applications.To achieve high RITs, doping as well as pressure assisted sintering is often used. In this study spark plasma sintering (SPS) and doping areinvestigated. A systematic experimental design is used to study the influence of Mg, Y and La single or co-doping (75–450 ppm) as well as theSPS sintering pressure and temperature on the RIT and grain size of PCA.Using optimized sintering parameters, RITs of >50% were attained in the visible wavelength (640 nm) for 0.8mm thick samples for almost alldoping strategies. The best RIT of 57% was for triple-doped samples at a total dopant level of 450 ppm. These results are significantly better thanpreviously published SPS studies and illustrate that SPS sintered alumina can attain high and reproducible optical transmittances under variousdoping and sintering conditions.

Place, publisher, year, edition, pages
2010. Vol. 30, no 6, 1335-1343 p.
Keyword [en]
Al2O3, Sintering, Optical properties, SPS
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-50386DOI: 10.1016/j.jeurceramsoc.2009.12.001OAI: oai:DiVA.org:su-50386DiVA: diva2:381241
Available from: 2010-12-25 Created: 2010-12-25 Last updated: 2017-12-11Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Zhao, Zhe
By organisation
Department of Materials and Environmental Chemistry (MMK)
In the same journal
Journal of the European Ceramic Society
Inorganic Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 26 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf