Indentation creep of a Ti-based metallic glass

Huang, Yue; Chiu, Yu-Lung; Shen, Jun; Chen, J. J. J.; Sun, Jianfei

doi:10.1557/jmr.2009.0106

Cited by 34 publications

(13 citation statements)

References 32 publications

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“…The stress exponent is 2.87 at the contact depth of 44.8 nm (at the peak load of 1 mN), but increases rapidly to 6.38 at the contact depth of 612.4 nm (at the peak load of 100 mN), indicating a strong dependence on the indentation size. Such an observation has been reported in a Ti 40 Zr 25 Ni 3 Cu 12 Be 20 metallic glassy alloy [23]. Fig.…”

Section: Resultssupporting

confidence: 78%

Indentation creep of an Fe-based bulk metallic glass

et al. 2009

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Section: Resultssupporting

confidence: 78%

Indentation creep of an Fe-based bulk metallic glass

et al. 2009

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“…Thus, it is consistently predicted that the interphase region is approximately one order of magnitude stiffer than the bulk epoxy. Although no direct measurement of interphase thickness or stiffness has been reported for these composites, indirect estimates from a range of experiments also suggest this level of interphase stiffening and thickness [26,27]. [23][24][25], and ν m of the epoxy was assumed as 0.364.…”

Section: Resultsmentioning

confidence: 99%

Prediction of elastic properties for polymer–particle nanocomposites exhibiting an interphase

Deng

Vliet

2011

Nanotechnology

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Particle-polymer nanocomposites often exhibit mechanical properties described poorly by micromechanical models that include only the particle and matrix phases. Existence of an interfacial region between the particle and matrix, or interphase, has been posited and indirectly demonstrated to account for this effect. Here, we present a straightforward analytical approach to estimate effective elastic properties of composites comprising particles encapsulated by an interphase of finite thickness and distinct elastic properties. This explicit solution can treat nanocomposites that comprise either physically isolated nanoparticles or agglomerates of such nanoparticles; the same framework can also treat physically isolated nanoparticle aggregates or agglomerates of such aggregates. We find that the predicted elastic moduli agree with experiments for three types of particle-polymer nanocomposites, and that the predicted interphase thickness and stiffness of carbon black-rubber nanocomposites are consistent with measured values. Finally, we discuss the relative influence of the particle-polymer interphase thickness and stiffness to identify maximum possible changes in the macroscale elastic properties of such materials.

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“…However, upon unconfined loading at room temperature, they usually fail by shear localization with very limited global plasticity and such a brittle fracture severely hinders the broader applications of the BMGs [6,7]. In order to extend their applications, there is an increasing need for a full assessment of their mechanical and tribological properties [8][9][10][11]. The latter is of particular interest since the generally high hardness values of amorphous alloys would make them good candidates for high wear resistance applications [12,13].…”

Section: Introductionmentioning

confidence: 99%