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Growth model for hi...
Growth model for high-Al containing CVD TiAlN coatings on cemented carbides using intermediate layers of TiN
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- Ben Hassine, Mohamed, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Andrén, Hans-Olof, 1947 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Harihara Subramonia Iyer, Anand, 1990 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lotsari, Antiope, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bäcke, Olof, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Stiens, Dirk (author)
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Janssen, Wiebke (author)
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Manns, Thorsten (author)
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Kümmel, Johannes (author)
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- Halvarsson, Mats, 1965 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2021
- 2021
- English.
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In: Surface and Coatings Technology. - : Elsevier BV. - 0257-8972. ; 421
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https://doi.org/10.1...
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Abstract
Subject headings
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- This work concerns high Al-containing TixAl1-xN coatings prepared using low pressure-chemical vapour deposition (LP-CVD). The coatings were examined using electron microscopy techniques, such as scanning transmission electron microscopy (STEM), energy dispersive X-ray analysis (EDX) and transmission Kikuchi diffraction (TKD). An intermediate TiN-layer with a 〈211〉 texture consisting of twinned, needle-shaped grains influences the subsequent growth of the TiAlN layer. The TiAlN grains were columnar with a texture of 〈211〉. As the grains grow along 〈111〉, with {001} facets, this led to a tilted pyramid surface morphology. The grains developed an internal periodic epitaxial nanolamella structure. The thicknesses were 2 nm for the low (x = 0.6) and 6 nm for the high (x = 0.9) Al-containing lamellae. The TiAlN layer growth could be described by a “two-wing” model, where two TiAlN grains with a twin-related orientation grow on a twinned TiN grain, where the two TiAlN grains gradually switch sides, making the appearance of two wings of columnar grains. In general, this work shows that it should be possible to control the growth of TiAlN layers by controlling the texture and morphology of an intermediate layer, such as TiN.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Nanolamellae
- Growth model
- HRSTEM
- LP-CVD TiAlN/TiN
- Texture
Publication and Content Type
- art (subject category)
- ref (subject category)
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Ben Hassine, Moh ...
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Andrén, Hans-Olo ...
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Harihara Subramo ...
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Lotsari, Antiope ...
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Bäcke, Olof, 198 ...
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Stiens, Dirk
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show more...
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Janssen, Wiebke
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Manns, Thorsten
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Kümmel, Johannes
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Halvarsson, Mats ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Inorganic Chemis ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Ceramics
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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Surface and Coat ...
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Chalmers University of Technology