Preparation of PZT Slurry with High Solids Loading and Low Viscosity for Gelcasting

Author(s):  
Dong Xiang Zhou ◽  
Bo Wu Yan ◽  
Sheng Lin Jiang ◽  
Yi Hua Deng
2007 ◽  
Vol 336-338 ◽  
pp. 1038-1041
Author(s):  
Dong Xiang Zhou ◽  
Bo Wu Yan ◽  
Sheng Lin Jiang ◽  
Yi Hua Deng

The dispersion and stability of PZT aqueous suspensions were investigated by using ammonium salt of polyacrylic acid (PMAA-NH4) as the dispersant. By observing the sedimentation behavior and measuring the viscosity, the effects of dispersant concentration and pH value on the dispersion and stability of the suspensions were studied. The experiment results showed that the optimum concentration of PMAA-NH4 and the optimum pH were 0.25-0.45 wt.%( by weight of the PZT powders) and 8.5-10, respectively. When the dispersant concentration was about 0.45 wt.%, and pH value was about 9.4, the stable PZT suspensions with high solids loading (up to 52 vol.%) and low viscosity (<1Pa.s) was obtained for gelcasting. The microstructure of ceramic formed by gelcasting was denser and more homogeneous than that by die pressing.


2016 ◽  
Vol 111 ◽  
pp. 387-402 ◽  
Author(s):  
Elin Svensson ◽  
Valeria Lundberg ◽  
Mikael Jansson ◽  
Charilaos Xiros ◽  
Thore Berntsson

2001 ◽  
Vol 206-213 ◽  
pp. 75-78
Author(s):  
O. Lyckfeldt ◽  
Lisa Palmqvist ◽  
Frederic Poeydemenge

2018 ◽  
Vol 250 ◽  
pp. 273-280 ◽  
Author(s):  
Bárbara Ribeiro Alves Alencar ◽  
Emmanuel Damilano Dutra ◽  
Everardo Valadares de Sá Barretto Sampaio ◽  
Rômulo Simões Cezar Menezes ◽  
Marcos Antônio Morais

2017 ◽  
Vol 114 (5) ◽  
pp. 980-989 ◽  
Author(s):  
Mingjie Jin ◽  
Cory Sarks ◽  
Bryan D. Bals ◽  
Nick Posawatz ◽  
Christa Gunawan ◽  
...  

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