Robocasting: Prediction of ink printability in solgel bioactive glass
authors Ben-Arfa, BAE; Neto, AS; Salvado, IMM; Pullar, RC; Ferreira, JMF
nationality International
journal JOURNAL OF THE AMERICAN CERAMIC SOCIETY
author keywords balls to powder ratio; calcination temperature; robocasting; scaffolds; solid loading; suspension rheology
keywords PARTICLE-SIZE DISTRIBUTION; DRYING-SHRINKAGE BEHAVIOR; SCAFFOLDS; MICROSTRUCTURE; SUSPENSIONS; PACKING
abstract Bioactive glass powders synthesized by solgel are usually porous and exhibit high specific surface areas, conferring them poor ability for scaffolds fabrication using colloidal processing approaches. The difficulties associated with colloidal processing of solgel glass have hindered so far the processing of 3-D scaffolds by robocasting. This research paper investigates the importance of calcination temperature (CT) and balls to powder ratio (BPR) used upon wet milling on the maximum achievable solid loading in aqueous media. The effects of CT, BPR, and solid loading on the flow behavior and viscoelastic properties of the suspensions/pastes were evaluated in this preliminary work. The aim is to disclose the sets of experimental variables that are most promising for the formulation of printable inks, and open the way for the future fabrication of porous scaffolds by robocasting and other 3-D additive manufacturing techniques.
publisher WILEY
issn 0002-7820
isbn 1551-2916
year published 2019
volume 102
issue 4
beginning page 1608
ending page 1618
digital object identifier (doi) 10.1111/jace.16092
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000459595500009
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journal analysis (jcr 2019):
journal impact factor 3.502
5 year journal impact factor 3.475
category normalized journal impact factor percentile 91.071
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