Premium
Oxidation Behavior at 1600 ° C of Si‐ S i C ‐ Z r B 2 Composites Produced by Si Reactive Infiltration
Author(s) -
D'Amico Giuseppe Claudio,
Ortona Alberto,
Biamino Sara,
Fino Paolo,
Badini Claudio,
D'Angelo Claudio
Publication year - 2014
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201300261
Subject(s) - materials science , borosilicate glass , passivation , composite material , ceramic , infiltration (hvac) , porosity , silicon , layer (electronics) , chemical engineering , metallurgy , engineering
Si–SiC–ZrB 2 are produced by the reactive infiltration with molten silicon in porous SiC–C–ZrB 2 preforms. It is observed that oxidized Si–SiC–ZrB 2 ceramics present a layered structure composed of an outer layer of silica and a borosilicate glass intermediate layer with ZrO 2 particles and the unoxidized bulk material. The graphs show that the passivation is very effective already after 5 min of oxidation. The thermograms do not vary significantly when the oxidation times are increased.