The functionally graded material (FGM) is the new concept for a heat resist
ing material. FGM consists of ceramics on one side and metal on the other.
A composition and microstructure of an intermediate layer change continuous
ly from ceramics to metal at the micron level. This study is carried out to
analyze the thermal shock characteristics of functionally graded PSZ/metal
composites. Heat-resistant property was evaluated by gas burner heating te
st using C2H2/O-2 combustion flame. The ceramic surface was heated with bur
ner flame and the bottom surface cooled with water flow.. Also, the composi
tion profile and the thickness of the graded layer were varied to study the
thermomechanical response. Furthermore, this study carried out the thermal
stress analysis to investigate the thermal characteristics by the finite e
lement method. Acoustic emission(AE) monitoring was performed to detect the
microfracture process in a thermal shock test.