Effects of substrate temperature on structure, thermal stability and mechanical property of a Zr-based metallic glass thin film

Liu, S.Y.; Cao, Qing; Qian, Xiao Qian; Wang, Qianxi; Wang, X.D.; Zhang, D.X.; Hu, Xianqiao; Xu, Weixing; Ferry, Michael; Jiang, J.Z.

doi:10.1016/j.tsf.2015.10.049

Cited by 22 publications

(11 citation statements)

References 40 publications

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“…lower temperatures of crystallization. This was the case for MG of composition ≈ Zr 60 Cu 8 Ni 25 Al 4 Hf 1 Ti 2 [63]. Chu et al observed no modification of the thermal stability (T g = 400 °C and T x = 500 °C) in sputter-deposited Zr 51.4 Cu 29.5 Ni 12.3 Al 6.8 thin film metallic glasses prepared at different temperatures ranging from RT to 400 °C [59].…”

Section: Metallic Glassesmentioning

confidence: 97%

Ultrastable glasses: new perspectives for an old problem

et al. 2022

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Ultrastable glasses (mostly prepared from the vapor phase under optimized deposition conditions) represent a unique class of materials with low enthalpies and high kinetic stabilities. These highly stable and dense glasses show unique physicochemical properties, such as high thermal stability, improved mechanical properties or anomalous transitions into the supercooled liquid, offering unprecedented opportunities to understand many aspects of the glassy state. Their improved properties with respect to liquid-cooled glasses also open new prospects to their use in applications where liquid-cooled glasses failed or where not considered as usable materials. In this review article we summarize the state of the art of vapor-deposited (and other) ultrastable glasses with a focus on the mechanism of equilibration, the transformation to the liquid state and the low temperature properties. The review contains information on organic, metallic, polymeric and chalcogenide glasses and an updated list with relevant properties of all materials known today to form a stable glass.

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Section: Metallic Glassesmentioning

confidence: 97%

Ultrastable glasses: new perspectives for an old problem

et al. 2022

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“… 1 , 2 , 3 For example, the glass surface displays enhanced atomic dynamics with several orders of magnitude faster than that of the bulk and behaves as “liquid-like,” 4 , 5 , 6 which has a pronounced effect on glass transition and crystallization as the size of the glass is reduced. 7 , 8 , 9 , 10 Studies on polymer thin films have revealed that the glass transition temperature can be significantly reduced when the film thickness is below a critical value. 7 , 8 On the other hand, the surface mobility increases much more slowly with increasing temperature than that in bulk, resulting in anomalous thermal stability 9 and crystallization behaviors, such as the formation of superlattice at the surface.…”

Section: Introductionmentioning

confidence: 99%

“… 7 , 8 , 9 , 10 Studies on polymer thin films have revealed that the glass transition temperature can be significantly reduced when the film thickness is below a critical value. 7 , 8 On the other hand, the surface mobility increases much more slowly with increasing temperature than that in bulk, resulting in anomalous thermal stability 9 and crystallization behaviors, such as the formation of superlattice at the surface. 10 In the recent work by Ma et al., the fast surface dynamics enabled the cold joining of metallic glass (MG) ribbons under ultrasonic vibrations, which is used to synthesize bulk MGs or metallic glass-glass composites.…”

Section: Introductionmentioning

confidence: 99%

Unusually thick shear-softening surface of micrometer-size metallic glasses

et al. 2021

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Unusually thick shear-softening surface of micrometer-size metallic glasses. The Innovation 2(2), 100106.The surface of glass is crucial for understanding many fundamental processes in glassy solids. A common notion is that a glass surface is a thin layer with liquid-like atomic dynamics and a thickness of a few tens of nanometers. Here, we measured the shear modulus at the surface of both millimeter-size and micrometer-size metallic glasses (MGs) through high-sensitivity torsion techniques. We found a pronounced shear-modulus softening at the surface of MGs. Compared with the bulk, the maximum decrease in the surface shear modulus (G) for the micro-scale MGs reaches~27%, which is close to the decrease in the G upon glass transition, yet it still behaves solid-like. Strikingly, the surface thickness estimated from the shear-modulus softening is at least 400 nm, which is approximately one order of magnitude larger than that revealed from the glass dynamics. The unusually thick surface is also confirmed by measurements using X-ray nano-computed tomography, and this may account for the brittle-to-ductile transition of the MGs with size reductions. The unique and unusual properties at the surface of the micrometer-size MGs are physically related to the negative pressure effect during the thermoplastic formation process, which can dramatically reduce the density of the proximate surface region in the supercooled liquid state.

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“…From the experimental investigation it has been concluded that the yield, flexural and tensile strength started to decline in the initial stage and remained constant afterwards. [50] related the response of different substrate temperature of 293K to 493K of a glassy film made up of zirconium, copper, nickel, aluminium, hafnium and titanium and estimated that the higher the substrate temperature lesser will be thermal consistency, toughness and anti-oxidation.…”

Section: Impact Of High Temperature On Mechanical Properties Ofmentioning

confidence: 99%

Rock Mechanical Properties of Granite/ Clay/ Basalts/ Argillite / Glass and its Alterations at Different Temperatures-A Review

Diaz¹

2017

JACE

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This paper presents a review of the effect of temperature in altering the rigid mechanical properties of materials like granite, clay, basalt, argillite and glass. Mechanical properties such as elasticity, stress, porosity, tensile strength and permeability of the materials were analysed at various temperatures. The analysis highlights the results and conclusions derived from numerous experimental works like tri-axial compression test, uniaxial test, etc. Apart from this, the impact of temperature on physical characteristics like colour, porosity, wave propagation and density were also studied. The main feature of this study is to showcase the acceptable range of temperature of the materials so as to avoid cracking and breaking of the materials during engineering applications. Moreover some back up techniques have been suggested to enhance the quality and strength of the materials.

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Effects of substrate temperature on structure, thermal stability and mechanical property of a Zr-based metallic glass thin film

Cited by 22 publications

References 40 publications

Ultrastable glasses: new perspectives for an old problem

Ultrastable glasses: new perspectives for an old problem

Unusually thick shear-softening surface of micrometer-size metallic glasses

Rock Mechanical Properties of Granite/ Clay/ Basalts/ Argillite / Glass and its Alterations at Different Temperatures-A Review

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