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A Strategy to Enhan...
A Strategy to Enhance the B-Solubility and Mechanical Properties of Ti-B-N Thin Films
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- Janknecht, Rebecca (author)
- TU Wien, Inst Mat Sci & Technol, Vienna, Austria.
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- Hahn, Rainer (author)
- TU Wien, Christian Doppler Lab Surface Engn High Performan, Vienna, Austria.
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- Koutná, Nikola (author)
- TU Wien, Inst Mat Sci & Technol, Vienna, Austria.;Linköping Univ, Dept Phys Chem & Biol IFM, Linköping, Sweden.
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- Wójcik, Tomasz (author)
- TU Wien, Inst Mat Sci & Technol, Vienna, Austria.
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- Ntemou, Eleni (author)
- Uppsala universitet,Materialfysik
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- Steiger-Thirsfeld, Andreas (author)
- TU Wien, Univ Serv Facil Transmiss Electron Microscopy UST, Vienna, Austria.
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- Chen, Zhuo (author)
- Austrian Acad Sci, Erich Schmid Inst Mat Sci, Vienna, Austria.
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- Kirnbauer, Alexander (author)
- TU Wien, Inst Mat Sci & Technol, Vienna, Austria.
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- Polcik, Peter (author)
- Plansee Composite Mat GmbH, Lechbruck, Germany.
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- Kolozsvári, Szilárd (author)
- Plansee Composite Mat GmbH, Lechbruck, Germany.
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- Zhang, Zaoli (author)
- Austrian Acad Sci, Erich Schmid Inst Mat Sci, Vienna, Austria.
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- Primetzhofer, Daniel (author)
- Uppsala universitet,Tillämpad kärnfysik,Materialfysik
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- Mayrhofer, Paul H. (author)
- TU Wien, Inst Mat Sci & Technol, Vienna, Austria.
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TU Wien, Inst Mat Sci & Technol, Vienna, Austria TU Wien, Christian Doppler Lab Surface Engn High Performan, Vienna, Austria. (creator_code:org_t)
- Elsevier, 2024
- 2024
- English.
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In: Acta Materialia. - : Elsevier. - 1359-6454 .- 1873-2453. ; 271
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Abstract
Subject headings
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- The Ti–B–N system offers a wide range of possible meta(stable) phases, making it interesting for science and industry. However, the solubility for B within the face-centered cubic (fcc)-TiN lattice is rather limited and less studied, especially without forming B-rich phases. Therefore, we address how chemistries along the TiN–TiB2 or TiN–TiB tie-line influence this B-solubility. The variation between these two tie-lines is realized through non-reactive co-sputtering of a TiN, TiB2, and Ti target. We show that for variations along the TiN–TiB tie-line, even 8.9 at.% B (equivalent to 19.3 at.% non-metal fractions) can fully be incorporated into the fcc-TiNy lattice without forming other B-containing phases. The combination of detailed microstructural characterization through X-ray diffraction and transmission electron microscopy with ab initio calculations of fcc-Ti1-xNBx, fcc-TiN1-xBx, and fcc-TiN1-2xBx solid solutions indicates that B essentially substitutes N.The single-phase fcc-TiB0.17N0.69 (the highest B-containing sample along the TiN–TiB tie-line studied) exhibits the highest hardness H of 37.1±1.9 GPa combined with the highest fracture toughness KIC of 3.0±0.2 MPa·m1/2 among the samples studied. These are markedly above those of B-free TiN0.87 having H = 29.2±2.1 GPa and KIC = 2.7±<0.1 MPa·m1/2.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Physical vapor deposition (PVD)
- Solubility
- Fracture toughness
- Mechanical properties
- DFT
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Janknecht, Rebec ...
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Hahn, Rainer
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Koutná, Nikola
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Wójcik, Tomasz
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Ntemou, Eleni
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Steiger-Thirsfel ...
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show more...
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Chen, Zhuo
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Kirnbauer, Alexa ...
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Polcik, Peter
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Kolozsvári, Szil ...
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Zhang, Zaoli
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Primetzhofer, Da ...
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Mayrhofer, Paul ...
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- About the subject
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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 Metallurgy and M ...
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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 ...
- Articles in the publication
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Acta Materialia
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Uppsala University