Particulate dispersion and freeform fabrication of BaTiO3 thick films via direct inkjet printing

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Title:	Particulate dispersion and freeform fabrication of BaTiO3 thick films via direct inkjet printing
Authors:	Tseng, Wenjea J. Lin, S. -Y. Wang, Shin-Ru
Contributors:	材料所
Keywords:	inkjet printing BaTiO3 nickel functionally graded materials
Date:	2006
Issue Date:	2009-11-16 12:10:04 (UTC+8)
Abstract:	A piezoelectric drop-on-demand inkjet printer was used to print BaTiO3-Ni functionally graded thick films onto porous substrates of computer-defined patterns without the need of prior mold tooling and the use of masks. The inkjet deposits were built up from a sequential delivery of ink droplets expelled from the print-head orifice with a precise location-registration capability upon multiple printings. A uniform dispersion of the particle-filled liquid inks was a prerequisite for a successful printing, and an addition of propylene glycol facilitated the nanoparticles dispersion in evaporative ethanol-isopropanol solvents. Typical line width of the inkjet-printed patterns was as narrow as 200 mu m, and a maximum film thickness attainable exceeded 20 mu m. A uniform concentration gradient of the dissimilar phases was evident along the thickness direction of the printed functional films.
Relation:	JOURNAL OF ELECTROCERAMICS Volume: 16 Issue: 4 Pages: 537-540
Appears in Collections:	[Department of Chemical & Materials Engineering] journal articles

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