The shape of the grains and the granulometry distribution of the PZT powder are the main factor influencing the densification. In addition, we shown that a higher concentration of PZT powder in the ink with a right rheology of the ink improves the density of PZT film. So, we obtained a PZT thick layer with 97% in density with no addition of glassy phase.
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Vechembre et al. (1999) studied this question.
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