Tailoring nanostructured Ni-Nb metallic glassy thin films by substrate temperature

Wang, Yao; Cao, Q.P.; Liu, S.Y.; Wang, X.D.; Fecht, Hans-Joerg; Caron, Arnaud; Zhang, D.X.; Jiang, J.Z.

doi:10.1016/j.actamat.2020.04.046

Cited by 32 publications

(10 citation statements)

References 55 publications

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“…S10, ESI †). The smaller wrinkles at the undercuts can be attributed to the thinner films due to the shadowing effect 44 and the higher local compression during pre-strain relaxation. 28,45 Notably, the high local strain (much larger than pre-strain) at the undercuts enables the metal film to accommodate greater strain during the subsequent tensile deformation process.…”

Section: Principles Of Structural Design and Conductive Mechanismmentioning

confidence: 99%

Highly stable and strain-insensitive metal film conductors via manipulating strain distribution

Zhu,

Wu,

Wang

et al. 2023

Mater. Horiz.

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Section: Principles Of Structural Design and Conductive Mechanismmentioning

confidence: 99%

Highly stable and strain-insensitive metal film conductors via manipulating strain distribution

Zhu,

Wu,

Wang

et al. 2023

Mater. Horiz.

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“…In addition, a versatile route for reproducible and easily repeatable synthesis of this new class of glasses was lacking until now and has now been established via magnetron sputtering of columnar glassy films with internal glass glass interfaces. [6][7][8] The second aspect of the present work is thus related to the analysis of the glass-glass interfaces in magnetron-sputtered thin films to examine if those structures present properties similar to what has been advocated for nano-glasses.…”

Section: Introductionmentioning

confidence: 99%

Evidence for Glass–glass Interfaces in a Columnar Cu–Zr Nanoglass

Voigt,

Rigoni,

Boltynjuk

et al. 2023

Adv Funct Materials

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Comprehensive analyses of the atomic structure using advanced analytical transmission electron microscopy‐based methods combined with atom probe tomography confirm the presence of distinct glass–glass interfaces in a columnar Cu‐Zr nanoglass synthesized by magnetron sputtering. These analyses provide first‐time in‐depth characterization of sputtered film nanoglasses and indicate that glass–glass interfaces indeed present an amorphous phase with reduced mass density as compared to the neighboring amorphous regions. Moreover, dedicated analyses of the diffusion kinetics by time‐of‐flight secondary ion mass spectroscopy (ToF SIMS) prove significantly enhanced diffusivity, suggesting fast transport along the low density glass–glass interfaces. The present results further indicate that sputter deposition is a feasible technique for reliable production of nanoglasses and that some of the concepts proposed for this new class of glassy materials are applicable.

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“…[15] Yao et al studied Ni 60 Nb 40 thin-film metallic glass while gradually heating the substrate to a temperature close to the glass transition temperature (T g ); they found that increasing the temperature during the sputtering process gave a smoother sample surface while also enhancing the plastic deformation stability, thermal stability, and reflectivity in the visible region. [16] Hao et al prepared a metallic glass-based broadband optical absorber; from an investigation of the optical properties of amorphous Au 55 Cu 25 Si 20 , they achieved an average absorption of ≈95% for wavelengths in the region between 500 and 1500 nm. [17] Moreover, in the study of the optical properties of metallic glass, Tarigan et al used the Drude model to fit the refractive index and extinction coefficient in the wavelength range from 250 to 2500 nm of a smooth-surface sample of bulk Pt 57.5 Cu 14.7 Ni 5.3 P 22.5 metallic glass.…”

Section: Introductionmentioning

confidence: 99%

Emissivity and Optical Properties of Thin‐Film Metallic Glass in the Thermal Infrared Region

Lai,

Hsiao,

Wang

et al. 2023

Advanced Optical Materials

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This study displays the emissivities and optical properties of thin‐film metallic glasses in the thermal infrared (IR) region. It is found that the amorphous structure of the metallic glass hinders the movement of electrons, leading to unique optical properties in the thermal IR region. Measurements of the optical constants of NiNb thin‐film metallic glasses reveal that a high processing pressure and sputtering power yield high optical conductivity and a low damping constant. Adjusting the parameters of the sputtering processes allows the fabrication of thin‐film metallic glasses with a range of damping constants and also the change in the reflectance and emissivity. Applying optical thin film theory, the emissivity of thin‐film metallic glass in the thermal IR region can be modulated. The measured emissivity of the thin‐film metallic glass (45.35%) is significantly enhanced when compared with that of a Si substrate or metal film. Furthermore, the cooling ability of the optimal metallic glass is much higher than that of Si and metal films. These findings reveal that metallic glass films can display thermal radiative properties superior to those of metals and semiconductors, making them promising materials for use in electronic devices with excellent mechanical characteristics and heat dissipation properties.

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Tailoring nanostructured Ni-Nb metallic glassy thin films by substrate temperature

Cited by 32 publications

References 55 publications

Highly stable and strain-insensitive metal film conductors via manipulating strain distribution

Highly stable and strain-insensitive metal film conductors via manipulating strain distribution

Evidence for Glass–glass Interfaces in a Columnar Cu–Zr Nanoglass

Emissivity and Optical Properties of Thin‐Film Metallic Glass in the Thermal Infrared Region

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