2015
DOI: 10.3390/ma8041729
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Direct Ink Writing of Three-Dimensional (K, Na)NbO3-Based Piezoelectric Ceramics

Abstract: A kind of piezoelectric ink was prepared with Li, Ta, Sb co-doped (K, Na)NbO3 (KNN) powders. Piezoelectric scaffolds with diameters at micrometer scale were constructed from this ink by using direct ink writing method. According to the micro-morphology and density test, the samples sintered at 1100 °C for 2 h have formed ceramics completely with a high relative density of 98%. X-ray diffraction (XRD) test shows that the main phase of sintered samples is orthogonal (Na0.52K0.4425Li0.0375)(Nb0.87Sb0.07Ta0.06)O3.… Show more

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Cited by 39 publications
(18 citation statements)
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“…3D printed BT [237][238][239], modified KNN [240], PVDF [241,242] and PLLA [243] have recently been fabricated for piezoelectric sensors and functional scaffolds which have limitedly been researched for tissue engineering applications. There are however challenges in processing and formulation of the raw material for printing and inducing piezoelectricity.…”
Section: D Printing Of Piezoelectric Materialsmentioning
confidence: 99%
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“…3D printed BT [237][238][239], modified KNN [240], PVDF [241,242] and PLLA [243] have recently been fabricated for piezoelectric sensors and functional scaffolds which have limitedly been researched for tissue engineering applications. There are however challenges in processing and formulation of the raw material for printing and inducing piezoelectricity.…”
Section: D Printing Of Piezoelectric Materialsmentioning
confidence: 99%
“…It was observed that the green bodies formed were unstable and sintering lead to substantial shrinkage. In another study concerning piezoelectric ceramics, Yayun Li fabricated KNN based 3D ceramic structures using direct ink writing method and observed piezoelectric and ferroelectric behaviour in the complex structured samples [240]. The solid content of the ink was adjusted to optimize viscosity for processing.…”
Section: D Printing Of Piezoelectric Materialsmentioning
confidence: 99%
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“…Direct ink writing (DIW) that consists of a moving nozzle dispensing ink onto a substrate has been utilized in lead‐based piezoelectric ceramics such as Pb(Zr,Ti)O 3 (PZT) and (Pb,La)(Zr,Ti)O 3 . But for the lead‐free piezoelectric ceramics, most reports are related to the FDM from a composite filament of lead‐free piezoelectric powders embedded in a plastic matrix . Moreover, printing via DIW an aqueous lead‐free ink is seldom reported.…”
Section: Introductionmentioning
confidence: 99%
“…It is a non-mold forming method based on the principle of pneumatic injection that uses a liquid suspension, slurry, or colloid as the printing material [10][11][12]. Recently, the technology of pneumatic injection additive manufacture has been widely used in the additive manufacture of metals [13][14][15], ceramics [16,17], batteries [18], biomedical engineering scaffolds [19,20], and biological tissue [21]. Jakus et al used poly(lactic-co-glycolic acid) (PLGA) as a binder and prepared iron oxide, nickel oxide, and copper oxide powder slurries to print complex three-dimensional structures using pneumatic injection manufacture and studied the tensile and compressive properties of the printed parts [22].…”
Section: Introductionmentioning
confidence: 99%