Improving thermal stability of hard coating films via a concept of multicomponent alloying
2011 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 99, no 9, 091903- p.Article in journal (Refereed) Published
We propose a design route for the next generation of nitride alloys via a concept of multicomponent alloying based on self-organization on the nanoscale via a formation of metastable intermediate products during the spinodal decomposition. We predict theoretically and demonstrate experimentally that quasi-ternary (TiCrAl)N alloys decompose spinodally into (TiCr)N and (CrAl)N-rich nanometer sized regions. The spinodal decomposition results in age hardening, while the presence of Cr within the AlN phase delays the formation of a detrimental wurtzite phase leading to a substantial improvement of thermal stability compared to the quasi-binary (TiAl)N or (CrAl)N alloys.
Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2011. Vol. 99, no 9, 091903- p.
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-70747DOI: 10.1063/1.3631672ISI: 000294489300018OAI: oai:DiVA.org:liu-70747DiVA: diva2:441463
Funding Agencies|SSF||Swedish Research Council||Gran Gustafsson Foundation for Research in Natural Sciences and Medicine||2011-09-162011-09-162015-06-01