thermal content
3.Microstructural change and thermal shock performance of metal/ceramic graded thermal barrier coatings in thermal shock experiments were studied by scanning electron microscope and energy-dispersive spectrometry.The results showed:1) metal microstructure kept intact while ceramic microstructure had been destroyed;2) thermal shock performance of coatings was interrelated with its function to relax residual stresses,therefore thermal shock performance of gradient thermal barrier coatings was better than that of terraced thermal barrier coatings;3) thermal shock performance was concerned with metal content in metal/ceramic thermal barrier coatings,which would be improved when metal content was increased.
8.H/C CONTENT VARIATION OF ORGANIC MATTER IN SOURCE ROCKS DURING THERMAL EVOLUTION

