AlN/CrN multilayer structures with increased thermal stability
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Liu, S., Yang, Y., Ji, R., Zeng, X., & Clegg, W. (2017). AlN/CrN multilayer structures with increased thermal stability. Scripta Materialia, 130 242-246. https://doi.org/10.1016/j.scriptamat.2016.12.020
CrAlYN nanolayered coatings of greatly enhanced thermal stability have been developed by doping with levels of Y up to 9 at.%. This prevented the complete dissolution of the layered structure after annealing at 1100 °C in Ar for 1 h, commonly observed in coatings with little or no Y content, although the bilayer period increased from ~ 5 nm to ~ 10 nm. The improved thermal stability is attributed to the formation of a continuous YN layer between the CrN and AlN layers, reducing the rate of interdiffusion.
thermal stability, diffusion, nanolayered coating, AlN/CrN
External DOI: https://doi.org/10.1016/j.scriptamat.2016.12.020
This record's URL: https://www.repository.cam.ac.uk/handle/1810/262957
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