21 April 2016 Ensuring near-optimum homogeneity and densification levels in nano-reinforced ceramics
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Abstract
The development of a new generation of high temperature ceramic materials for aerospace applications, reinforced at a scale closer to the molecular level and three orders of magnitude less than conventional fibrous reinforcements, by embedded carbon nanotubes, has recently emerged as a uniquely challenging scientific effort. The properties of such materials depend strongly on two main factors: i) the homogeneity of the dispersion of the hydrophobic medium throughout the ceramic volume and ii) the ultimate density of the resultant product after sintering of the green body at the high-temperatures and pressures required for ceramic consolidation. The present works reports the establishment of two independent experimental strategies which ensure achievement of near perfect levels of tube dispersion homogeneity and fully dense final products. The proposed methodologies are validated across non-destructive evaluation data of materials performance.
Conference Presentation
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Konstantinos G. Dassios, Konstantinos G. Dassios, Nektaria-Marianthi Barkoula, Nektaria-Marianthi Barkoula, Panagiota Alafogianni, Panagiota Alafogianni, Guillaume Bonnefont, Guillaume Bonnefont, Gilbert Fantozzi, Gilbert Fantozzi, Theodore E. Matikas, Theodore E. Matikas, "Ensuring near-optimum homogeneity and densification levels in nano-reinforced ceramics", Proc. SPIE 9806, Smart Materials and Nondestructive Evaluation for Energy Systems 2016, 98060N (21 April 2016); doi: 10.1117/12.2219896; https://doi.org/10.1117/12.2219896
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