Ink‐Jet Printing and Sintering of PZT

Suspensions of Pb(Zr 0.53 Ti 0.47 )O 3 (PZT)-5H powders, with solid contents up to 40 vol% in a paraffin oil/wax medium using a mixed polyester and amine dispersant system, have been prepared for ink-jet printing. Sufficient suspension stability for printing requires a sub-micron particle distribution, and this could only be achieved by attrition milling the as-received powder. The influence of printing parameters on drop velocity is shown to be consistent with simple physical models of the behavior of the suspensions. Trial objects have been fabricated with 35% PZT suspensions. These have been sintered to full density, with porosity less than 1% and without significant distortion, despite a mean linear shrinkage measured at 25%.

[1]  Brian Derby,et al.  Ink-jet delivery of particle suspensions by piezoelectric droplet ejectors , 2005 .

[2]  M. Edirisinghe,et al.  Optimization of Dispersion and Viscosity of a Ceramic Jet Printing Ink , 2005 .

[3]  L. Bergström.  Rheological Properties of Concentrated, Nonaqueous Silicon Nitride Suspensions , 1996 .

[4]  Brian Derby,et al.  Inkjet Printing of Highly Loaded Particulate Suspensions , 2003 .

[5]  B. Derby,et al.  Ink Jet Printing of PZT Aqueous Ceramic Suspensions , 1999 .

[6]  Frank E. Talke,et al.  Experimental and theoretical study of wave propagation phenomena in drop-on-demand ink jet devices , 1984 .

[7]  Brian Derby,et al.  Freeform fabrication by controlled droplet deposition of powder filled melts , 2002 .

[8]  C. E. Slade.  Freeforming Ceramics Using a Thermal Jet Printer , 1998 .

[9]  Brian Derby,et al.  Viscosity and acoustic behavior of ceramic suspensions optimized for phase-change ink-jet printing , 2005 .

[10]  Brian Derby,et al.  Ink-Jet Printing of Wax-Based Alumina Suspensions , 2001 .

[11]  J. E. Fromm,et al.  Numerical calculation of the fluid dynamics of drop-on-demand jets , 1984 .

[12]  J. F. Dijksman,et al.  Hydrodynamics of small tubular pumps , 1984, Journal of Fluid Mechanics.

[13]  G. Thornell,et al.  Desktop microfabrication - initial experiments with a piezoceramic , 1999 .

[14]  David B. Wallace,et al.  Acoustic phenomena in a demand mode piezoelectric ink jet printer , 2002 .

[15]  John Evans,et al.  Microengineering of Ceramics by Direct Ink‐Jet Printing , 1999 .