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Thermal Investigation of Al 2 O 3 Thin Films for Application in Cutting Operations
Author(s) -
Bobzin Kirsten,
Bagcivan Nazlim,
Immich Philipp,
Ewering Mara
Publication year - 2009
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800421
Subject(s) - materials science , thermal stability , thin film , thermal , phase (matter) , composite material , metallurgy , chemical engineering , nanotechnology , thermodynamics , chemistry , physics , organic chemistry , engineering
Crystalline PVD γ‐Al 2 O 3 coatings offer great potential for use in high‐speed cutting operations. They offer specific high temperature features, like high hot hardness and high oxidation resistance. However, the reasons for the high thermal stability of this system are not clearly understood. In this paper, the phase and oxidation stability of thin γ‐Al 2 O 3 films (as illustrated in the micrograph) are investigated.