Oxidation of Nano-multilayered TiAlSiN Films at 800–900 °C in Air

Bak, Sang Hwan; Lee, Dong Bok

doi:10.1007/s11085-015-9558-z

Cited by 10 publications

(4 citation statements)

References 14 publications

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“…This difference is probably not high enough to completely avoid the TiO 2 formation. An oxidation of TiAlSiN coatings was previously studied by Bak and Lee [ 49 ]. Their TiAlSiN coatings initially oxidized to an Al 2 O 3 layer with some TiO 2 , below which a rutile-TiO 2 layer containing Al 2 O 3 was formed [ 49 ].…”

Section: Resultsmentioning

confidence: 99%

“…An oxidation of TiAlSiN coatings was previously studied by Bak and Lee [ 49 ]. Their TiAlSiN coatings initially oxidized to an Al 2 O 3 layer with some TiO 2 , below which a rutile-TiO 2 layer containing Al 2 O 3 was formed [ 49 ]. At longer annealing times, another TiO 2 -rich surface layer was formed over the previously formed (Al 2 O 3 -rich)/(TiO 2 -rich) bilayers, as Ti continuously diffused outwards from the film.…”

Section: Resultsmentioning

confidence: 99%

“…At longer annealing times, another TiO 2 -rich surface layer was formed over the previously formed (Al 2 O 3 -rich)/(TiO 2 -rich) bilayers, as Ti continuously diffused outwards from the film. The authors had Ti-excess TiAlSiN films (Ti 0.26 Al 0.163 Si 0.012 N 0.565 , [ 49 ]). Therefore, the reaction (3) was partially reversed towards TiO 2 formation because of the high Ti concentration.…”

Section: Resultsmentioning

confidence: 99%

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Influence of Isothermal Annealing on Microstructure, Morphology and Oxidation Behavior of AlTiSiN/TiSiN Nanocomposite Coatings

et al. 2023

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The present work investigates the influence of isothermal annealing on the microstructure and oxidation behavior of nanocomposite coatings. AlTiSiN/TiSiN coatings with TiSiN adhesive layer were deposited onto a high-speed steel substrate via physical vapor deposition. The coatings were investigated in the as-deposited state as well as after annealing in air at 700, 800, 900 and 1000 °C, respectively. The microstructure and morphology of the coatings were observed using scanning electron microscopy and transmission electron microscopy. The chemical composition and presence of oxidation products were studied by energy-dispersive X-ray spectroscopy. The phase identification was performed by means of X-ray diffraction. In the microstructure of the as-deposited coating, the (Ti1-xAlx)N particles were embedded in an amorphous Si3N4 matrix. TiO2 and SiO2 were found at all annealing temperatures, and Al2O3 was additionally identified at 1000 °C. It was found that, with increasing annealing temperature, the thickness of the oxide layer increased, and its morphology and chemical composition changed. At 700 and 800 °C, a Ti-Si-rich surface oxide layer was formed. At 900 and 1000 °C, an oxidized part of the coating was observed in addition to the surface oxide layer. Compared to the as-deposited sample, the oxidized samples exhibited considerably worse mechanical properties.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Influence of Isothermal Annealing on Microstructure, Morphology and Oxidation Behavior of AlTiSiN/TiSiN Nanocomposite Coatings

et al. 2023

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“…According to Donnet [15], the introduction of elements such as Al, Si, B, Ag, etc. [98] into the matrix can significantly enhance a range of properties, including thermal stability [38,231], oxidation resistance [232], corrosion resistance [233], and lubricating performance [34,53,234], as well as hardness [53,123,235]. These improvements can be achieved through strategic structural design or composition design [236].…”

Section: The Lubricating Mechanism Based On the Tribo-chemical Reactionsmentioning

confidence: 99%

Insight into the Mechanisms of Nitride Films with Excellent Hardness and Lubricating Performance: A Review

Wu,

Jiang,

et al. 2023

Nanomaterials

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Transition metal nitride (TMN) films with excellent hardness and lubricating performance are versatile low dimension materials, which are widely used in various fields including industries, transportation, aerospace, and so on. This paper introduces one film design strategy and provides a review of the mechanisms for strengthening and lubricating nitride films. The design strategy refers to two aspects which determine the structures, the performance, the components, and the chemical constitutions of nitride films The strengthening mechanisms of nitride films are then illuminated in detail, including the solid solution effect, the grain size effect, the secondary phase effect, the stress or stress field effect, the template effect, and the valence electron concentration effect. Five lubricating mechanisms are next summarized, including the easy-shear nature, the tribo-chemical reactions, the lubricious fluorides, the textured contact surface, and the synergistic effect. This paper aims to give a comprehensive introduction for understanding the mechanisms of strengthening and lubrication of nitride films for students and researchers, as well as to understand the current research progress in nitride films for exploring research gaps.

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