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Effect of Electrospun Alumina Nanofibers Incorporation in Ceramic Glaze
E. Carneiro1, P. Sá2, B. Almeida2, C. A. Pinto3, 3, J. P. Mendonça4, S. Carvalho1
1 GRF-CFUM, University of Minho, Campus of Azurém, 4800 – 058 Guimarães, Portugal
2 CFUM, University of Minho, Campus of Gualtar, 4700 – 057 Braga, Portugal
3 VAA – VISTA ALEGRE ATLANTIS, 1200 – 301 Lisboa, Portugal
4 CT2M - Department of Mechanical Engineering, University of Minho, Campus of Azurém, 4800 – 058 Guimarães, Portugal
received September 25, 2014, received in revised form December 9, 2014, accepted January 13, 2015
Vol. 6, No. 1, Pages 69-74 DOI: 10.4416/JCST2014-00042
Abstract
Al2O3 nanofibers were produced with the electrospinning technique based on a precursor solution of PVP with aluminum 2,4-pentanedionate. After fiber deposition onto ceramic specimens, specimens were calcinated at a maximum temperature of 1400 °C, similar to the manufacturing temperature of commercially available whitewares. Structural and morphological characterization of the produced alumina nanofibers was performed as well as a vast mechanical characterization of ceramic glazed specimens with incorporated nanofibers. Without any significant alteration in the aesthetics properties of the glaze, a 10-% increase in the maximum allowable loads before break was noted.
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Keywords
Electrospinning, nanofibers, alumina, ceramic, glaze.
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