Processing and microstructure of porous and dense PZT thick films on Al2O3
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The processing of porous PZT thick-film ceramics on Al2O3 has been studied. The films were screen-printed from a thixotropic ink of PZT with a 58% solids content. The thick films were sintered between 1000 and 1150°C for 2 h. The sintered films show a 10 μm thickness and an average pore diameter ranging from 1–2 μm. The PZT forms a continuous skeleton that can be filled with the desired polymer. Dense and continuous PZT films were fabricated by screen-printing PZT ink on previously electroded Al2O3 substrates with Ag/Pd 70/30 paste. Densification of the PZT was obtained by sintering near the liquidus temperature of the Ag-Pd system.
KeywordsMicrostructure Al2O3 Pore Diameter Material Processing Solid Content
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- 7.E. Nieto, J. F. Fernandez, C. Moure and P. Duran, J. Mater Sci. (1995) in press.Google Scholar
- 8.T. Chartier, E. Jorge and P. Boch, J. Phys. III (1991) 689.Google Scholar
- 10.S. K. Saha, D. C. Agrawal, Am. Ceram. Soc. Bull. 71 (1992) 1424.Google Scholar
- 12.T. Ota, J. Takahashi and I. Yamai, in “Electronic Ceramic Materials”, edited by J. Nowotny (Trans. Tech, Brookfield VT, USA, 1992) 229.Google Scholar
- 15.Y. D. Kim, S. M. Landin, I. A. Cornejo and M. J. Haun, in “Proceedings of the IEEE International Symposium on Application on Ferroelectrics 1994”, edited by R. K. Pandey, S. T. Liu and A. Safari (IEEE Inc., Piscataway, NJ, 1995) in press.Google Scholar