AlN/CrN multilayer structures with increased thermal stability
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Liu, S
Yang, Y
Ji, R
Zeng, XT
Clegg, WJ
Abstract
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.
Description
Keywords
thermal stability, diffusion, nanolayered coating, AlN/CrN
Journal Title
Scripta Materialia
Conference Name
Journal ISSN
1359-6462
Volume Title
130
Publisher
Elsevier
Publisher DOI
Sponsorship
Engineering and Physical Sciences Research Council (EP/M005607/1)