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In-situ  stress measurement during the deposition of CN x thin films by unbalanced magnetron sputtering; formation of high levels of stress with 28 eV ion irradiation

Brunell, I.F. (author)
Pichon, L. (author)
Lab. de Mëtallurgie Physique, UMR 6630-CNRS, Téléport 2, Boulevard Pierre et Marie Curie, Chasseneuil Cédex, France
Hellgren, N. (author)
Materials Research Laboratory, University of Illinois, 104 S. Goodwin Ave., Urbana, IL 61801, United States
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Czigany, Zsolt (author)
Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
Neidhardt, Jörg (author)
Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
Hultman, Lars (author)
Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
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Lab de Mëtallurgie Physique, UMR 6630-CNRS, Téléport 2, Boulevard Pierre et Marie Curie, Chasseneuil Cédex, France Materials Research Laboratory, University of Illinois, 104 S. Goodwin Ave., Urbana, IL 61801, United States (creator_code:org_t)
Informa UK Limited, 2004
2004
English.
In: Philosophical Magazine Letters. - : Informa UK Limited. - 0950-0839 .- 1362-3036. ; 84:6, s. 395-403
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Stress development during growth of CN x films by unbalanced magnetron sputtering has been investigated with an in-situ laser deflection technique. The stress is initially tensile, then it becomes compressive, reaching a maximum of as much as 7 GPa. These are anomalously high stress levels compared with pure carbon, considering the low ion energies (28 eV) and ion-to-neutral arrival rate ratio (<1) employed. This phenomenon is explained by the formation of a fullerene-like microstructure and nitrogen substitution at the growth surface. An accompanying increased reactivity of carbon atoms promotes sp3 bonding or other cross-linking of curved basal planes with resulting film densification.

Keyword

TECHNOLOGY
TEKNIKVETENSKAP

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