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|標題:||Particulate dispersion and freeform fabrication of BaTiO3 thick films via direct inkjet printing||作者:||Tseng, W.J.
|關鍵字:||inkjet printing;BaTiO3;nickel;functionally graded materials;ceramic inks||Project:||Journal of Electroceramics||期刊/報告no：:||Journal of Electroceramics, Volume 16, Issue 4, Page(s) 537-540.||摘要:||
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.
|Appears in Collections:||材料科學與工程學系|
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