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Ion kinetic energy-...
Ion kinetic energy- and ion flux-dependent mechanical properties and thermal stability of (Ti,Al)N thin films
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- Aghda, Soheil Karimi (author)
- Rhein Westfal TH Aachen, Mat Chem, Kopernikusstr 10, D-52074 Aachen, Germany.,Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, Aachen 52074, Germany
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- Holzapfel, Damian M. (author)
- Rhein Westfal TH Aachen, Mat Chem, Kopernikusstr 10, D-52074 Aachen, Germany.,Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, Aachen 52074, Germany
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- Music, Denis (author)
- Malmö universitet,Institutionen för materialvetenskap och tillämpad matematik (MTM),Materials Science,Malmö Univ, Dept Mat Sci & Appl Math, S-20506 Malmö, Sweden.
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- Unutulmazsoy, Yeliz (author)
- Leibniz Inst Surface Engn IOM, Permoserstr 15, D-04318 Leipzig, Germany.,Leibniz Institute of Surface Engineering (IOM), Permoserstr. 15, Leipzig 04318, Germany
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- Mraz, Stanislav (author)
- Rhein Westfal TH Aachen, Mat Chem, Kopernikusstr 10, D-52074 Aachen, Germany.,Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, Aachen 52074, Germany
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- Bogdanovski, Dimitri (author)
- Rhein Westfal TH Aachen, Mat Chem, Kopernikusstr 10, D-52074 Aachen, Germany.,Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, Aachen 52074, Germany
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- Fidanboy, Gonenc (author)
- Rhein Westfal TH Aachen, Mat Chem, Kopernikusstr 10, D-52074 Aachen, Germany.,Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, Aachen 52074, Germany
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- Hans, Marcus (author)
- Rhein Westfal TH Aachen, Mat Chem, Kopernikusstr 10, D-52074 Aachen, Germany.,Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, Aachen 52074, Germany
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- Primetzhofer, Daniel (author)
- Uppsala universitet,Tillämpad kärnfysik,Tandemlaboratoriet,Department of Physics and Astronomy, Uppsala University, Lägerhyddsvägen 1, Uppsala 75120, Sweden
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- Mendez, Alba San Jose (author)
- Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
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- Anders, Andre (author)
- Leibniz Inst Surface Engn IOM, Permoserstr 15, D-04318 Leipzig, Germany.;Univ Leipzig, Felix Bloch Inst, Linnestr 5, D-04103 Leipzig, Germany.,Leibniz Institute of Surface Engineering (IOM), Permoserstr. 15, Leipzig 04318, Germany; Felix Bloch Institute, Leipzig University, Linnéstr. 5, Leipzig 04103, Germany
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- Schneider, Jochen M. (author)
- Rhein Westfal TH Aachen, Mat Chem, Kopernikusstr 10, D-52074 Aachen, Germany.,Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, Aachen 52074, Germany
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Rhein Westfal TH Aachen, Mat Chem, Kopernikusstr 10, D-52074 Aachen, Germany Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, Aachen 52074, Germany (creator_code:org_t)
- Elsevier, 2023
- 2023
- English.
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In: Acta Materialia. - : Elsevier. - 1359-6454 .- 1873-2453. ; 250
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Abstract
Subject headings
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- Ion-irradiation-induced changes in structure, elastic properties, and thermal stability of metastable c-(Ti,Al)N thin films synthesized by high-power pulsed magnetron sputtering (HPPMS) and cathodic arc deposition (CAD) are systematically investigated by experiments and density functional theory (DFT) simulations. While films deposited by HPPMS show a random orientation at ion kinetic energies (Ek)>105 eV, an evolution towards (111) orientation is observed in CAD films for Ek>144 eV. The measured ion energy flux at the growing film surface is 3.3 times larger for CAD compared to HPPMS. Hence, it is inferred that formation of the strong (111) texture in CAD films is caused by the ion flux-and ion energy-induced strain energy minimization in defective c-(Ti,Al)N. The ion energy-dependent elastic modulus can be rationalized by considering the ion energy-and orientation -dependent formation of point defects from DFT predictions: The balancing effects of bombardment-induced Frenkel defects formation and the concurrent evolution of compressive intrinsic stress result in the apparent independence of the elastic modulus from Ek for HPPMS films without preferential orientation. However, an ion energy-dependent elastic modulus reduction of similar to 18% for the CAD films can be understood by considering the 34% higher Frenkel pair concentration formed at Ek=182 eV upon irradiation of the experimentally observed (111)-oriented (Ti,Al)N in comparison to the (200)-configuration at similar Ek. Moreover, the effect of Frenkel pair concentration on the thermal stability of metastable c-(Ti,Al)N is investigated by differential scanning calorimetry: Ion-irradiation-induced increase in Frenkel pairs concentration retards the wurtzite formation temperature by up to 206 degrees C.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Keyword
- Ion kinetic energy
- TiAlN
- Stress state
- Point defects
- Frenkel pairs
- Hard coatings
- Elastic modulus
- Thermal stability
- Density functional theory
Publication and Content Type
- ref (subject category)
- art (subject category)
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Aghda, Soheil Ka ...
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Holzapfel, Damia ...
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Music, Denis
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Unutulmazsoy, Ye ...
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Mraz, Stanislav
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Bogdanovski, Dim ...
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Fidanboy, Gonenc
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Hans, Marcus
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Primetzhofer, Da ...
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Mendez, Alba San ...
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Anders, Andre
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Schneider, Joche ...
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- 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 Materials Chemis ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
- Articles in the publication
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Acta Materialia
- By the university
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Uppsala University
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Malmö University