A turbine component has a substrate formed from a ceramic material
selected from the group consisting of a monolithic ceramic material and a
composite ceramic material and a thermal barrier coating bonded to the
substrate. In one embodiment, the ceramic material forming the substrate
is selected from the group of silicon nitride and self-reinforced silicon
nitride. In another embodiment, the ceramic material forming the
substrate is selected from the group consisting of a silicon
carbide-silicon carbide material and a carbon-carbon material. At least
one bond coat layer may be interposed between the substrate and the
thermal barrier coating.