Sökning: onr:"swepub:oai:DiVA.org:liu-56270" >
Effects of volume m...
Effects of volume mismatch and electronic structure on the decomposition of ScAlN and TiAlN solid solutions
-
- Höglund, Carina (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
- Alling, Björn (författare)
- Linköpings universitet,Teoretisk Fysik,Tekniska högskolan
-
- Birch, Jens (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
visa fler...
-
- Beckers, Manfred (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
- Persson, Per O. Å. (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
- Baehtz, Carsten (författare)
- Structural Diagnostics Division, Institute of Ion Beam Physics and Materials Research, Forschungszentrum Dresden-Rossendorf e.V., P.O. Box 510119, D-01314 Dresden, Germany
-
- Czigány, Zsolt (författare)
- Research Institute for Technical Physics and Materials Science, Hungarian Academy of Sciences, P.O. Box 49, H-1525 Budapest, Hungary
-
- Jensen, Jens (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
- Hultman, Lars (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
-
visa färre...
-
(creator_code:org_t)
- 2010
- 2010
- Engelska.
-
Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 81:22, s. 224101-
- Relaterad länk:
-
https://liu.diva-por... (primary) (Raw object)
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Thin solid films of metastable rocksalt structure (c-) Sc1-xAlxN and Ti1-xAlxN were employed as model systems to investigate the relative influence of volume mismatch and electronic structure driving forces for phase separation. Reactive dual magnetron sputtering was used to deposit stoichiometric Sc0.57Al0.43N(111) and Ti0.51Al0.49N(111) thin films, at 675 °C and 600 °C, respectively, followed by stepwise annealing to a maximum temperature of 1100 °C. Phase transformations during growth and annealing were followed in situ using X-ray scattering. The results show that the as-deposited Sc0.57Al0.43N films phase separate at 1000 °C – 1100 °C into non-isostructural c-ScN and wurtzite-structure (w-) AlN, via nucleation and growth at domain boundaries. Ti0.51Al0.49N, however, exhibits spinodal decomposition into isostructural coherent c-TiN and c-AlN, in the temperature interval of 800 °C – 1000 °C. X-ray pole figures show the coherency between c-ScN and w-AlN, with AlN(0001) || ScN(001) and AlN<01ɸ10> || ScN<1ɸ10>. First principles calculations of mixing energy-lattice spacing curves explain the results on a fundamental physics level and open a route for design of novel metastable pseudobinary phases for hard coatings and electronic materials.
Nyckelord
- TiAlN
- ScAlN
- spinodal decomposition
- nitrides
- TiN
- ScN
- AlN
- XRD
- TEM
- first-principles
- phase separation
- meta stable
- NATURAL SCIENCES
- NATURVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas