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Manno, Switzerland

Bianchi G.,ICIMSI Institute | Ferrari L.,ICIMSI Institute | Barbato M.,ICIMSI Institute | Gianella S.,EngiCer SA | And 2 more authors.
Journal of the American Ceramic Society | Year: 2015

This work reports on the heat and mass transfer evolution of ceramic lattices during their oxidation at 1400°C and 1600°C in air. Si-SiC and Si-SiC-ZrB2 systems were employed as skeleton material because they, previously produced as monolithic bars, showed promising oxidation behavior at high temperatures. Regular arrays of tetrakaidecahedra were first designed by CAD, then 3D printed and finally converted into ceramic by replica technique followed by reactive silicon infiltration. The surface area of each sample was calculated and specific weight variations were evaluated as a function of time. During oxidation, effective thermal conductivity and pressure drop of each sample were measured. Finally, results were correlated with the phenomena occurring during higherature oxidation. © 2015 The American Ceramic Society. Source

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