科研之友
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摘要
In this work, we propose a nanocrystalline Al2O3/amorphous Al2O3 composite coating for protecting steels operating in heavy liquid metals (HLMs) at high temperature. The coating is grown by Pulsed Laser Deposition (PLD). Previous work by Garcia Ferre et al. [27] has shown that PLD-grown Al2O3 attains an unusual ensemble of metal-like mechanical properties and strong interfacial bonding, all combined with the chemical stability and resistance to wear of ceramics. In a short term corrosion test (500 h), 9Cr1 Mo steel samples were coated and exposed to stagnant lead at 550 degrees C. Cross-sectional SEM and EDX analysis revealed no signs of corrosion.
- 出版日期2013-12
