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Robocasting: Prediction of ink printability in solgel bioactive glass
Author(s) -
BenArfa Basam A. E.,
Neto Ana S.,
Miranda Salvado Isabel M.,
Pullar Robert C.,
Ferreira José M. F.
Publication year - 2019
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.16092
Subject(s) - materials science , fabrication , calcination , composite material , bioactive glass , porosity , inkwell , colloid , chemical engineering , medicine , biochemistry , alternative medicine , pathology , catalysis , chemistry , engineering
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.