Formulation and dispersion of NiCuZn ferrite paste

The rheological behaviors of screen-printing pastes

“…It indicates that EC/␣-terpineol solution shows the characteristic of a non-Newtonian fluid and EC/BCA solution is a Newtonian fluid in the shear rate investigated. These results are inconsistent with those reported by Hsu and Jean (Hsu and Jean, 2002). They suggested that no significant difference in pseudoplasticity is observed between polymer solutions of EC/␣-terpineol and EC/BCA and no distinct difference in solution quality between ␣-terpineol and BCA to EC is observed.…”

“…EC is commonly used as an organic binder and rheological modifier in paste industry and ␣-terpineol and BCA are reported having same solvent power on EC owing to their similar solubility parameter values (Hsu and Jean, 2002). However, our result shows that the behaviors of polymer solutions of EC in terpineol and in BCA are quite different as shown in Fig.…”

Rheological analysis of ceramic pastes with ethyl cellulose for screen-printing

“…This material can be used to prepare SOFC cathodes, and we have been trying to control the density and thickness of La 0.6 Sr 0.4 Ti 0.3 Fe 0.7 O 3 À δ films using screen-printing techniques [5,6]. For industrial screen printing using ceramic pastes, a polymer-ethyl cellulose (EC) for example--is generally combined with an organic solvent [5][6][7][8][10][11][12]. EC is popular in industry as it affords good printing and leveling.…”

Dispersion of nano-sized BaTiO3 powders in nonaqueous suspension with phosphate ester and their applications for MLCC

“…The dispersion of the nano-sized BaTiO 3 powders in a solvent is a challenging problem needs to be addressed for preparing the stabilized suspension used in ultra-thin ceramic tape fabrication process. [4][5][6][7][8][9][10][11] On the other hand, phosphate ester is a commonly used dispersant for various ceramic tape, [12][13][14][15][16] especially for BaTiO 3 materials. [17][18][19] The phosphate esters contain hydroxy group, which are ionized to form negatively charged oxygen 18,20 and react with ceramic powders electrostatically in the solvent.…”