Flash SPS (FSPS) consolidation of 3YSZ cold pressed pellets was investigated. The results show that FSPS allows ultra-rapid consolidation of 3YSZ samples in 30-90 s under an applied electric field. The DC field induces electrochemical blackening. The partial reduction process starts from the cathode (-) and propagates toward the anode (+). This phenomenon, not previously discussed in FSPS literature, induces the development of internal temperature gradients resulting in a polarity dependent grain size/densification.
Flash spark plasma sintering of 3YSZ / Biesuz, M.; Sedlak, R.; Saunders, T.; Kovalcikova, A.; Dusza, J.; Reece, M.; Zhu, D.; Hu, C.; Grasso, S.. - In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. - ISSN 0955-2219. - 39:5(2019), pp. 1932-1937. [10.1016/j.jeurceramsoc.2019.01.017]
Flash spark plasma sintering of 3YSZ
Biesuz M.;
2019-01-01
Abstract
Flash SPS (FSPS) consolidation of 3YSZ cold pressed pellets was investigated. The results show that FSPS allows ultra-rapid consolidation of 3YSZ samples in 30-90 s under an applied electric field. The DC field induces electrochemical blackening. The partial reduction process starts from the cathode (-) and propagates toward the anode (+). This phenomenon, not previously discussed in FSPS literature, induces the development of internal temperature gradients resulting in a polarity dependent grain size/densification.| File | Dimensione | Formato | |
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