The present invention relates generally to a multi-layered article suitable for service in severe environments. The article may be formed of a substrate, such as silicon carbide and/or silicon nitride. The substrate may have a first layer of a mixture of a rare earth silicate and Cordierite. The substrate may also have a second layer of a rare earth silicate or a mixture of a rare earth silicate and cordierite.
FEDERALLY SPONSORED RESEARCH
The Government of the United States of America has rights in this invention pursuant to Subcontract No. 44000017386 awarded by or for the U.S. Department of Energy under Prime Contract No. DE-AC05-00OR22725.