Email this article Precipitation of the Eutectic Al2O3–ZrO2 (Y2O3) on the Surface of SiC Particles
- Authors: Nesmelov D.D.1, Kozhevnikov O.A.1, Ordan’yan S.S.1, Perevislov S.N.1
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Affiliations:
- St. Petersburg State Technological Institute (Technical University)
- Issue: Vol 74, No 1-2 (2017)
- Pages: 43-47
- Section: Science for Ceramic Production
- URL: https://journals.rcsi.science/0361-7610/article/view/244774
- DOI: https://doi.org/10.1007/s10717-017-9925-0
- ID: 244774
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Abstract
Nanosize additives (agglomerate size 30 – 50 nm) of a eutectic composition in the system Al2O3–ZrO2 (63 – 37%, molar fraction), containing 4% Y2O3 (above 100%), were obtained by co-precipitation in a SiC suspension followed by vacuum firing. In the process of spark plasma sintering of the obtained powdered compositions, the liquid phase appeared at temperature Tr = 1720°C, which is 140°C lower than the temperature of the eutectic in the system Al2O3–ZrO2 (Te = 1860°C).
About the authors
D. D. Nesmelov
St. Petersburg State Technological Institute (Technical University)
Author for correspondence.
Email: dnesmelov@yandex.ru
Russian Federation, St. Petersburg
O. A. Kozhevnikov
St. Petersburg State Technological Institute (Technical University)
Email: dnesmelov@yandex.ru
Russian Federation, St. Petersburg
S. S. Ordan’yan
St. Petersburg State Technological Institute (Technical University)
Email: dnesmelov@yandex.ru
Russian Federation, St. Petersburg
S. N. Perevislov
St. Petersburg State Technological Institute (Technical University)
Email: dnesmelov@yandex.ru
Russian Federation, St. Petersburg
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