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High Strength Alumina Micro-Beams Fabricated by Inkjet Printing
Article first published online: 31 AUG 2012
© 2012 The American Ceramic Society
Journal of the American Ceramic Society
Volume 95, Issue 10, pages 3016–3018, October 2012
How to Cite
Philips, N. R., Compton, B. G., Begley, M. R. (2012), High Strength Alumina Micro-Beams Fabricated by Inkjet Printing. Journal of the American Ceramic Society, 95: 3016–3018. doi: 10.1111/j.1551-2916.2012.05395.x
- Issue published online: 2 OCT 2012
- Article first published online: 31 AUG 2012
- Manuscript Accepted: 7 NOV 2012
- Manuscript Received: 15 JUN 2012
Freestanding ceramic microbeams were fabricated by inkjet printing of aqueous colloidal suspensions (up to 23 vol% alumina). Their high strength (920 MPa in bending) and stiffness (E ≈ 400 GPa) is attributed to low porosity (void fraction 0.03) and a paucity of microstructural flaws. A range of ink compositions and beam thicknesses were printed using a commercial inkjet cartridge and isostatically compacted prior to firing.