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- Title
Flash Sintering of YSZ/Al 2 O 3 Composites: Effect of Processing and Testing Conditions.
- Authors
Biesuz, Mattia; Ometto, Andrea; Sglavo, Vincenzo Maria; Aneziris, Christos G.
- Abstract
The flash sintering behavior of yttria-stabilized zirconia/alumina composites was investigated to understand the role of the fundamental processing and testing parameters (electric field intensity, electric current limit, thermal insulation, homogeneity and dispersion of the two phases) on densification. A strong relation between the composite compositions and the electric parameters needed to promote flash sintering is revealed. Interestingly, the composite preparation method, which affects the two-phases dispersion homogeneity, was shown to have a relevant effect on the flash onset conditions, where the more homogeneous material is more difficult to be flashed. Moreover, the use of a simple thermal insulation system around the green body allowed to improve the final density of the composites under constant electric current.
- Subjects
ALUMINA composites; THERMAL insulation; ELECTRIC currents; ELECTRIC fields; HOMOGENEITY
- Publication
Materials (1996-1944), 2021, Vol 14, Issue 4, p1031
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma14041031