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Advances in Applied Ceramics
Structural, Functional and Bioceramics
Volume 119, 2020 - Issue 7
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Research Article

Sintering of free-standing zirconia granules with different Y2O3 concentration

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Pages 407-413 | Received 27 May 2020, Accepted 24 Jun 2020, Published online: 09 Jul 2020
 

ABSTRACT

Three kinds of commercial zirconia powders with compositions (1–x)ZrO2xY2O3 (x = 0, 3 and 8 mol-%) were sintered at 1300–1600°C in their free-standing granules. The as-received powder with x = 0 is monoclinic (M) phase. Both as-received powders with x = 3 and 8 show mixed phases dominated by tetragonal (T). The powder with x = 0 returned to M phase at room temperature after high temperature sintering. The powder with x = 3 transfer from mixed phase (T + M) to single phase T after sintering at 1300°C or 1400°C. Moreover, minor M phase appears again when the sintering temperature is above 1400°C, sintering the powder with x = 8 shows only T phase after sintering at different temperatures.

Disclosure statement

No potential conflict of interest was reported by the authors.

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