Zhang, P;
Choy, KL;
(2015)
The Synthesis of Single Tetragonal Phase Zirconia by SolGel
Route.
International Journal of Engineering Research & Science (IJOER)
, 1
(7)
pp. 18-24.
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Abstract
Zirconia with tetragonal phase is a widely used functional material to toughen ceramics. At room temperature zirconia usually presents in the less stable form of monoclinic phase. In this paper, room temperature single tetragonal phase zirconia stabilized by yttria was successfully synthesized by a sol-gel route at a relative low temperature (≤1000oC). The calcination mechanism of zirconia was determined by thermogravimetric analysis and differential scanning calorimetry, which indicated that phase formation of zirconia started above 600oC. X-ray diffraction patterns showed stabilized with 3mol % yttria was insufficient to obtain fully single tetragonal phase zirconia. As the content of the stabilizer increased, single tetragonal phase zirconia was obtained as observed by Raman spectrum and X-ray diffraction. With 4mol% yttria content, zirconia remains stable with the desired tetragonal phase at room temperature.
| Type: | Article |
|---|---|
| Title: | The Synthesis of Single Tetragonal Phase Zirconia by SolGel Route |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://ijoer.com/issue-detail/issue-october-2015 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Zirconia, tetragonal phase, sol-gel, phase characterization |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1533032 |
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