| Full text | |
| Author(s): |
Lavagnini, Isabela R.
[1]
;
Campos, V, Joao
;
Ferreira, Julieta A.
[2]
;
Pallone, Eliria M. J. A.
[2]
Total Authors: 4
|
| Affiliation: | [1] Univ Sao Paulo, Dept Biosyst Engn, Fac Anim Sci & Food Engn FZEA, Av Duque de Cazias Norte 225, BR-13635900 Pirassununga, SP - Brazil
[2] Campos, Joao, V, Univ Sao Paulo, Dept Biosyst Engn, Fac Anim Sci & Food Engn FZEA, Av Duque de Cazias Norte 225, BR-13635900 Pirassununga, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Journal of the American Ceramic Society; v. 103, n. 6, p. 3493-3499, JUN 2020. |
| Web of Science Citations: | 16 |
| Abstract | |
The effect of a controlled current ramp during flash sintering (FS) on the densification and microstructural evolution of 3 mol% yttria-stabilized zirconia was investigated. The samples were flash sintered using a current ramp control with six different current ramp rates and compared with samples sintered by FS without current ramp control. In both cases, maximum electric current densities of 100 and 200 mA mm(-2) were used. The microstructure of cylindrical samples was observed, showing grain size heterogeneity between the curved surface and the core for the flash-sintered (FSed) samples regardless of the maximum current density used. By contrast, the current ramp FSed samples exhibited a homogeneous grain size when the electric current density of 100 mA mm(-2) was applied. Thus, controlling a current ramp during FS can be an alternative for avoiding grain size heterogeneity on ceramics sintered by this technique. (AU) | |
| FAPESP's process: | 18/04331-5 - Instrumentation and automation of a furnace adapted to flash sintering |
| Grantee: | João Vitor Campos |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 15/07319-8 - Study ultra rapid sintering and low energy consumption: flash Sintering |
| Grantee: | Eliria Maria de Jesus Agnolon Pallone |
| Support Opportunities: | Regular Research Grants |