The role of surface oxide composition on the fatigue strength of metallic glass wire

Olofinjana, Ayodele; Voo, Nyuk Yoong

doi:10.1016/j.apsusc.2013.12.181

Cited by 2 publications

(2 citation statements)

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“…In the case of chemomechanical polishing, chemical reactions between the glass surface and the polishing media polishing can alter the surface composition relative to the bulk glass composition [16][17][18][19]. These changes in surface morphology and chemistry have been shown to effect mechanical, chemical, and aesthetic properties [5][6][7][8]. There are a variety of characterization tools available for the surface compositional and morphological analysis of glass surfaces, each with their own capabilities and limitations.…”

Section: Introductionmentioning

confidence: 99%

“…In some cases the glass surface morphology and overall roughness has become the threshold for the continued development of novel electronics and portable devices [3,4]. The surface morphology, chemical composition and homogeneity of glass manufacturing products can influence a wide variety of performance related properties including the mechanical strength and chemical durability [5][6][7][8]. Furthermore, smooth, homogeneous and compositionally reproducible glass surfaces are required for mechanistic investigations associated with glass corrosion, chemical tempering, and thin film coating on glasses [9].…”

Section: Introductionmentioning

confidence: 99%

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Quantitative morphological and compositional evaluation of laboratory prepared aluminoborosilicate glass surfaces

Gong¹,

Wren²,

Mellott³

2015

Applied Surface Science

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a b s t r a c tSurface finishing techniques including polishing, etching and heat treatment can modify the topography and the surface chemical composition of glasses. It is widely acknowledged that atomic force microscopy (AFM) can be used to quantify the morphology of surfaces, providing various parameters including average, peak-to-valley, and apparent root-mean-square roughness. Furthermore advanced power spectral density (PSD) analysis of AFM-derived surface profiles offers quantification of the spatial homogeneity of roughness values along different wavelengths, resulting in parameters including equivalent RMS, Hurst exponent, and fractal dimension. Outermost surface (∼8 nm) chemical composition can be quantitatively measured by X-ray photoelectron spectroscopy. In this paper, we first developed a series of surface finishing methods for an aluminoborosilicate glass system by polishing, etching or heat treatment. The chemical composition and environment of prepared glass surfaces were quantified by XPS and topographical analysis was carried out by fractal and k-correlation model fitting of PSD profiles derived via AFM. The chemical environment of elements, as determined via XPS, present on the prepared surfaces are similar to those within the pristine bulk glass. The compositional evolution of polished and melt surfaces are discussed in context of corrosion phenomena associated with the grinding, polishing, and etching of surfaces and the thermal heat treatment utilized for processing, respectively. Good correlation between surface finishing methods, chemical composition and topographical parameters were observed. More importantly, extensive discussions on topographical parameters including equivalent RMS, Hurst exponent, and fractal dimension are presented as a function of processing method.

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