Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99269
Title: Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study
Authors: Vasylkiv, Oleg
Demirskyi, Dmytro
Sakka, Yoshio
Ragulya, Andrey
Borodianska, Hanna
Keywords: DRNTU::Science::Chemistry
Issue Date: 2012
Source: Vasylkiv, O., Demirskyi, D., Sakka, Y., Ragulya, A., & Borodianska, H. (2012). Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study. Journal of nanoscience and nanotechnology, 12(6), 4577-4582.
Series/Report no.: Journal of nanoscience and nanotechnology
Abstract: Two-stage densification process of nanosized 3 mol% yttria-stabilized zirconia (3Y-SZ) polycrystalline compacts during consolidation via microwave and spark-plasma sintering have been observed. The values of activation energies obtained for microwave and spark-plasma sintering 260–275 kJ·mol−1 are quite similar to that of conventional sintering of zirconia, suggesting that densification during initial stage is controlled by the grain-boundary diffusion mechanism. The sintering behavior during microwave sintering was significantly affected by preliminary pressing conditions, as the surface diffusion mechanism (230 kJ·mol−1) is active in case of cold-isostatic pressing procedure was applied.
URI: https://hdl.handle.net/10356/99269
http://hdl.handle.net/10220/13707
DOI: 10.1166/jnn.2012.6177
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:TL Journal Articles

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