Removing Gold Coating From Sem Samples

Leslie, Stephen A.; Mitchell, John C.

doi:10.1111/j.1475-4983.2007.00718.x

Cited by 21 publications

(9 citation statements)

References 9 publications

(9 reference statements)

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“…Furthermore, the SEM system was operated with moderate acceleration voltage equal to 5.0 kV. LDPE surfaces were coated by a thin layer (few angstroms thickness) of a gold (Au) to ensure higher resolution of captured SEM images, as well as to prevent charging of the surface and to promote the emission of secondary electrons [40].…”

Section: Surface Morphology Analysismentioning

confidence: 99%

Enhancement of Adhesion Characteristics of Low-Density Polyethylene Using Atmospheric Plasma Initiated-Grafting of Polyethylene Glycol

et al. 2021

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The low-density polyethylene/aluminum (LDPE/Al) joint in Tetra Pak provides stability and strength to food packaging, ensures protection against outside moisture, and maintains the nutritional values and flavors of food without the need for additives in the food products. However, a poor adhesion of LDPE to Al, due to its non-polar surface, is a limiting factor and extra polymeric interlayers or surface treatment is required. Plasma-assisted grafting of the LDPE surface with different molecular weight compounds of polyethylene glycol (PEG) was used to improve LDPE/Al adhesion. It was found that this surface modification contributed to significantly improve the wettability of the LDPE surface, as was confirmed by contact angle measurements. The chemical composition changes after plasma treatment and modification process were observed by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). A surface morphology was analyzed by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Adhesion characteristics of LDPE/Al adhesive joints were analyzed by the peel tests. The most significant adhesion improvement of the PEG modified LDPE surface was achieved using 10.0 wt.% aqueous (6000 M) PEG solution, while the peel resistance increased by approximately 54 times in comparison with untreated LDPE.

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Section: Surface Morphology Analysismentioning

confidence: 99%

Enhancement of Adhesion Characteristics of Low-Density Polyethylene Using Atmospheric Plasma Initiated-Grafting of Polyethylene Glycol

et al. 2021

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“…The coating can influence surface characteristics, e. g. impair the colours of the sample 29 and/or the elemental composition of the sample, which are important issues regarding painting micro-samples. Moreover, the removal of such layers is done mechanically or using chemicals which can strongly interact and destroy the surface of the sample 26 , 27 , 29 – 34 for further studies.…”

Section: Introductionmentioning

confidence: 99%

Conductive cross-section preparation of non-conductive painting micro-samples for SEM analysis

Jaques

Zikmundová

Holas

et al. 2022

Sci Rep

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Scanning electron microscopy (SEM) is a common method for the analysis of painting micro-samples. The high resolution of this technique offers precise surface analysis and can be coupled with an energy-dispersive spectrometer for the acquisition of the elemental composition. For light microscopy and SEM analysis, the painting micro-samples are commonly prepared as cross-sections, where the micro-sample positioned on the side is embedded in a resin. Therefore, the sequence of its layers is exposed after the cross-section is polished. In common cases outside of cultural heritage, a conductive layer is applied on the polished side, but in this field, the measurements are mostly done in low-vacuum SEM (LV-SEM). Although the charging effect is reduced in LV-SEM, it can still occur, and can hardly be prevented even with carbon tape or paint. This work presents two conductive cross-section preparation methods for non-conductive samples, which reduce charging effects without impairing the sample integrity.

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“…To evaluate the topology of minerals, the bulk-samples collected after steps 1 and 2 were gold-coated (Figure 1) and examined with Jeol IT-100 SEM. Gold-coating is commonly used to reduce charging effect (Belz & Auchterlonie, 1995;Leslie & Mitchell, 2007). Beam voltage of 8kv and probe current of 30pA was applied and the image was displayed using InTouchScope software.…”

Section: Methodsmentioning

confidence: 99%

Microscopy and image analysis of the micro-fabric and composition of saline rocks under different phaseCO2-Brine states

Ameh

Jin

Fan

et al. 2022

Journal of Petroleum Science and Engineering

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Removing Gold Coating From Sem Samples

Cited by 21 publications

References 9 publications

Enhancement of Adhesion Characteristics of Low-Density Polyethylene Using Atmospheric Plasma Initiated-Grafting of Polyethylene Glycol

Enhancement of Adhesion Characteristics of Low-Density Polyethylene Using Atmospheric Plasma Initiated-Grafting of Polyethylene Glycol

Conductive cross-section preparation of non-conductive painting micro-samples for SEM analysis

Microscopy and image analysis of the micro-fabric and composition of saline rocks under different phaseCO2-Brine states

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