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Heat and Mass Transfer in Ceramic Lattices During High‐Temperature Oxidation
Author(s) -
Aronovici Maud,
Bianchi Giovanni,
Ferrari Luca,
Barbato Maurizio,
Gianella Sandro,
Scocchi Giulio,
Ortona Alberto
Publication year - 2015
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.13658
Subject(s) - ceramic , materials science , thermal conductivity , silicon carbide , thermal oxidation , silicon , heat transfer , composite material , mass transfer , mineralogy , thermodynamics , metallurgy , chemistry , physics
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–ZrB 2 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 high‐temperature oxidation.