A Comparison Study of Magnetic Stirrer and Sonicator Technique to Disperse 1% Span20 Treated Layered Double Hydroxides (LDHs)

Teanmetawong, S; Chantaramanee, T.; Lhosupasirirat, Siraprapa; Wongariyakawee, Anchalee; Srikhirin, Toemsak

doi:10.1088/1757-899x/654/1/012005

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…The gel time of the epoxy and hardener was 45 min. According to [ 30 , 31 ], with a magnetic stirrer, the agglomeration of double-layered hydroxide nanoparticles cannot be completely broken. This is because the magnetic stirrer’s input energy is insufficient to separate all the agglomerate particles into individual particles.…”

Section: Methodsmentioning

confidence: 99%

Mechanical Response of Glass–Epoxy Composites with Graphene Oxide Nanoparticles

et al. 2022

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Graphene-based fillers possess exceptional properties that encourage researchers toward their incorporation in glass–epoxy (GE) polymer composites. Regarding the mechanical and wear properties of glass–epoxy composites, the effect of graphene oxide (GO) reinforced in glass–epoxy was examined. A decrease in tensile modulus and increase in tensile strength was reported for 1 wt. % of GO. A shift in glass transition temperature Tg was observed with the addition of GO. The cross-link density and storage modulus of the composite decreased with the addition of GO. The decrease in dissipation energy and wear rate was reported with the increase in GO concentration. A simple one-dimensional damage model of nonlinear nature was developed to capture the stress–strain behavior of the unfilled and filled glass–epoxy composite. Tensile modulus E, Weibull scale parameter σo, and Weibull shape parameter β were considered to develop the model. Finally, to understand the failure mechanisms in GO-filled composites, a scanning electron microscopic (SEM) examination was carried out for tensile fractured composites.

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Section: Methodsmentioning

confidence: 99%

Mechanical Response of Glass–Epoxy Composites with Graphene Oxide Nanoparticles

et al. 2022

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“…The ultrasonic transducer creates a homogeneous ultrasonic field in the etchant through mechanical-acoustic oscillations. Due to the cavitation, microscopic bubbles form in the etchant, which implode and the energy released pulls corrosion products off the sample surface [8].…”

mentioning

confidence: 99%

Effects of etchant stirring on the surface quality of the metallography sample

Ambrož,

Čermák,

Jozefovič

et al. 2023

J. Phys.: Conf. Ser.

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Despite its predominantly empirical nature, metallographic etching remains an important sample preparation method that enables microstructural characterization. The poor repeatability is due to the ignorance of etching mechanisms and the human factor, which is mainly associated with the conventional approach. This approach is most commonly practiced by manual immersion of the sample in the etchant. The solution should be gently stirred so that reaction products do not settle on the surface and uneven etching does not occur. Often, stirring is provided by the sample itself or by a magnetic bar. In terms of spatial orientation, etching with the polished surface facing upwards allows the surface to be observed during the process. Some authors recommend etching with the polished surface downwards to minimize the deposition of reaction products. In some cases, a vertical orientation of the sample is recommended to reduce pitting. In this paper, the effect of the etchant stirring method on the surface quality of a metallographic structural steel specimen will be presented. In addition to different etchant stirring methods, different spatial orientations of the sample will also be investigated. To ensure better repeatability and accurate etching time, the samples will be etched using our automated apparatus. The resulting surface of the samples will be analysed using light optical microscopy (LOM) and confocal laser scanning microscopy (CLSM). The development of more reproducible etching methods is essential to obtain accurate microstructure information without artifacts and for advanced quantitative image analysis using deep learning.

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A Comparison Study of Magnetic Stirrer and Sonicator Technique to Disperse 1% Span20 Treated Layered Double Hydroxides (LDHs)

Cited by 2 publications

References 8 publications

Mechanical Response of Glass–Epoxy Composites with Graphene Oxide Nanoparticles

Mechanical Response of Glass–Epoxy Composites with Graphene Oxide Nanoparticles

Effects of etchant stirring on the surface quality of the metallography sample

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