Effect of Nb concentration on the structure, mechanical, optical, and electrical properties of nano-crystalline Ti1−x Nb x N thin films

Vasu, Kuraganti; Krishna, M. Ghanashyam; Padmanabhan, K. A.

doi:10.1007/s10853-011-6197-x

Cited by 32 publications

(19 citation statements)

References 28 publications

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“…It is obvious that the addition of Nb into (Ti,Al)N raises the hardness of the (Ti,Al,Nb)N film. It is similar to the results of the (TiNb)N films reported by other scientists [4,19].…”

Section: Hardness and Adhesive Strength Of The (Tialnb)n Filmssupporting

confidence: 92%

“…The (Ti,Al,Nb)N films display the preferred growth orientation of (111) crystal plane, similar to the TiN,(TiAl)N and (TiNb)N films [4,18].…”

Section: Cross-sectional Morphology and N Distribution Of The (Tialmentioning

confidence: 76%

“…(Ti,Al)N films enhance wear and oxidation resistance of tools while overcoming the weakness of TiN and TiCN films [1,2]. (Ti,Nb)N films improve hardness and friction and wear performances compared with TiN [3][4][5]. A viewpoint is widely accepted that N-gradient distribution in film growth direction effectively reduces the gap between the thermal expansion coefficient of the film and the metal substrate and then reduces the internal stress in the film.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and mechanical properties of (Ti,Al,Nb)N hard films with N-gradient distributions

Zhang

Li-yan

2015

Thin Solid Films

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“…It is obvious that the addition of Nb into (Ti,Al)N raises the hardness of the (Ti,Al,Nb)N film. It is similar to the results of the (TiNb)N films reported by other scientists [4,19].…”

Section: Hardness and Adhesive Strength Of The (Tialnb)n Filmssupporting

confidence: 92%

“…The (Ti,Al,Nb)N films display the preferred growth orientation of (111) crystal plane, similar to the TiN,(TiAl)N and (TiNb)N films [4,18].…”

Section: Cross-sectional Morphology and N Distribution Of The (Tialmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

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Microstructure and mechanical properties of (Ti,Al,Nb)N hard films with N-gradient distributions

Zhang

Li-yan

2015

Thin Solid Films

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“…An increase of hardness has been reported with increasing Zr content [73] and explained by a dominant solid-solution hardening effect [72]. For Ti 1−x Nb x N, the material's hardness also increases with increasing Nb content and a maximum value of 31 ± 2.4 GPa is found for x(Nb)= 0.77 [74]. Ti 1−x Ta x N films have shown to be good conductors with varying density of conduction [76,81,82] and excellent mechanical properties with hardness as high as 42 GPa for x = 0.69 [76].…”

Section: Ternary Pseudo-binary Nitride Alloysmentioning

confidence: 92%

“…Generally they have higher hardness than their binary nitride components [71][72][73][74][75][76]. It has been shown that Ti 1−x X x N (X= Zr, Hf, V, Nb, Ta) can form solid solution over the whole x range (0 < x < 1) and are thermodynamically stable in the rocksalt structure [77,78].…”

Section: Ternary Pseudo-binary Nitride Alloysmentioning

confidence: 99%

Properties of multilayered and multicomponent nitride alloys from first principles

Wang¹

2018

Linköping Studies in Science and Technology. Dissertations

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This thesis is a theoretical exploration of properties of multilayered and multicomponent nitride alloys, in particular their mixing thermodynamics and elastic behaviors. Systematic investigation of properties of a large class of materials, such as the multicomponent nitride solid solutions, is in line with the modern approach of high-throughput search of novel materials. In this thesis we benchmark and utilize simple but efficient methodological frameworks in predicting mixing thermodynamics, Young's moduli distribution of multilayer alloys and the linear thermal expansion of quaternary nitride solid solutions.We demonstrate by accurate ab-initio calculations that Ti 1−x Al x N solid solution is stabilized by interfacial effects if it is coherently sandwiched between TiN layers along (001). For TiN/AlN and ZrN/AlN multilayers we show higher thermodynamic stability with semicoherent interfaces than with isostructural coherent ones.Accurate 0 Kelvin elastic constants of cubic Ti x X y Al 1−x−y N (X=Zr, Hf, Nb, V, Ta) solid solutions and their multilayers are derived and an analytic comparison of strengths and ductility are presented to reveal the potential of these materials in hard coating applications. The Young's moduli variation of the bulk materials has provided a reliable descriptor to screen the Young's moduli of coherent multilayers.The Debye model is used to reveal the high-temperature thermodynamics and spinodal decomposition of Ti x Nb y Al 1−x−y N. We show that though the effect of vibration is large on the mixing Gibbs free energy the local spinoal decomposition tendencies are not altered. A quasi-harmonic Debye model is benchmarked against results of molecular dynamics simulations in predicting the thermal expansion coefficients of Ti x X y Al 1−x−y N (X=Zr, Hf, Nb, V, Ta).v Sammanfattning Denna avhandling är en teoretisk undersökning av egenskaperna hos multilager och multikomponentlegeringar av nitrider, särskilt deras blandningstermodynamik och elastiska egenskaper. Systematiska undersökningar av egenskaperna hos en stor materialfamilj, såsom fasta lösningar av multikomponentnitrider, ligger i linje med den moderna angreppsvinkeln av massundersökningar i sökandet efter nya material. I denna avhandling utvärderar och använder vi enkla men effektiva metodologiska ramverk för att förutsäga blandningstermodynamik, fördelning av Young's moduli multilager och den linjära termiska expansionen i kvaternära fasta lösningar av nitrider.Vi visar med precisa ab-initio-beräkningar att en fast lösning av Ti 1−x Al x N stabiliseras av gränssnittseffekter om den placeras koherent mellan TiN-skikt längs med (001). För multilager av TiN/AlN och ZrN/AlN påvisar vi högre termodynamisk stabilitet med semikoherenta gränsskikt än med isostrukturella koherenta. Precisa elastiska konstanter vid 0 K för kubiska fasta lösningar av Ti x X y Al 1−x−y N (X=Zr, Hf, Nb, V, Ta) och deras multilager beräknas och en analytisk jämförelse av deras hållfasthet och duktilitet presenteras för att visa dessa materials potential ...

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Tribological Testing, Analysis and Characterization of D.C. Magnetron Sputtered Ti‐Nb‐N Thin Film Coatings on Stainless Steel

Joshi¹

2016

Characterization of Minerals, Metals, and Materials 2016

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Effect of Nb concentration on the structure, mechanical, optical, and electrical properties of nano-crystalline Ti1−x Nb x N thin films

Cited by 32 publications

References 28 publications

Microstructure and mechanical properties of (Ti,Al,Nb)N hard films with N-gradient distributions

Microstructure and mechanical properties of (Ti,Al,Nb)N hard films with N-gradient distributions

Properties of multilayered and multicomponent nitride alloys from first principles

Tribological Testing, Analysis and Characterization of D.C. Magnetron Sputtered Ti‐Nb‐N Thin Film Coatings on Stainless Steel

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