Wy. Lee et al., CONCEPT OF FUNCTIONALLY GRADED MATERIALS FOR ADVANCED THERMAL BARRIERCOATING APPLICATIONS, Journal of the American Ceramic Society, 79(12), 1996, pp. 3003-3012
This feature article explores the concept of creating functionally gra
ded metal-ceramic composite microstructures for thermal barrier coatin
gs used in gas-turbine applications, From a thermomechanical perspecti
ve, this concept offers the possibility of significantly improving the
life and reliability of thermal barrier coatings, However, prior rese
arch reveals that progress has been somewhat limited because of the ox
idative instability exhibited by some metal-ceramic composite microstr
uctures, The present study addresses some of the materials criteria an
d research issues associated with preparing chemically stable, yet mec
hanically durable, graded metal-ceramic microstructures for realistic
application environments.