Flash spark plasma sintering of 3YSZ
Journal of the European Ceramic Society(2019)
摘要
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.
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关键词
Flash sintering,Flash-SPS,3YSZ,Sintering,Field-assisted sintering,Electric current-assisted sintering
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