Investigation of mechanical, thermal and electrical parameters of gel combustion-derived cubic zirconia/epoxy resin composites for high-voltage insulation

Sagar, Jai; Kashyap, Shreyas J.; Madhu, G. M.; Dixit, Pradipkumar

doi:10.1590/0366-69132020663782887

Cited by 13 publications

(8 citation statements)

References 47 publications

(64 reference statements)

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“…Mg atoms originating from the base material also peak [25,28]. MgO and Mg peaks originate from the MAO coating and base material [29,30]. Diffraction peaks in MAO-epoxy coating are absent due to the amorphous structure of the epoxy resin.…”

Section: Resultsmentioning

confidence: 99%

"High-cycle fatigue and tensile strength of AZ91 Mg alloy with MAO-epoxy duplex coating "

Karabudak¹

2023

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In this study, an epoxy layer was formed by the immersion process, on the oxide layer grown by the micro-arc oxidation (MAO) treatment of the AZ91 magnesium alloy, using the thin film sealing technology, and its effect on fatigue and tensile stress under high cycle conditions was investigated. The microstructures of the AZ91 base material, MAO/AZ91 and MAO-epoxy/AZ91 samples, which were subjected to high-cycle fatigue tests and uniaxial static tensile tests, were assessed through the scanning electron microscope (SEM), X-ray diffraction (XRD) mechanical tests, and fatigue and tensile tests. As a result, the MAO-epoxy duplex coating, which has a homogeneous and compact structure, was observed to improve the fatigue limit value/life, yield strength, ultimate tensile strength, and percentage elongation values of the base material significantly.

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Section: Resultsmentioning

confidence: 99%

"High-cycle fatigue and tensile strength of AZ91 Mg alloy with MAO-epoxy duplex coating "

Karabudak¹

2023

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“…23 The peaks of pure epoxy are vastly broad, which indicates its amorphous behavior. 24 The gradual addition of TiN NPs into the epoxy shows the appearance of new peaks. Adding 1 wt % NPs into the epoxy shows a new peak at 43.10°and can be indexed to the (200) plane of TiN (JCPDS no.…”

Section: Resultsmentioning

confidence: 99%

“…The major diffraction peaks at 21 and 48° are the signature peaks of pure epoxy, originating due to the cross-linking nature of pure epoxy . The peaks of pure epoxy are vastly broad, which indicates its amorphous behavior . The gradual addition of TiN NPs into the epoxy shows the appearance of new peaks.…”

Section: Resultsmentioning

confidence: 99%

Performance Augmentation of Epoxy Adhesives with TiN Nanoparticles

2022

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In the current study, nanoparticles (NPs) of titanium nitride (50−70 nm) in varying amounts (0−4 wt %) were uniformly suspended in an epoxy solution and then used to cast the films of nanocomposites. The same formulations were used to prepare the lap shear strength joints using stainless-steel coupons with the help of standard molds and then employing the compression molding technique. The nanocomposites films were characterized for their physical properties, thermal stability, friction performance, and scratch hardness, while the lap shear strength of joints prepared using nanocomposites as nanoadhesives was evaluated. The failed surfaces of joints were investigated using scanning electron microscopy (SEM) to understand the failure modes, that is, micro-failure mechanisms, while the cross-sectional surfaces of fractured nanocomposites were investigated using SEM to identify the distribution of NPs. The increase in the contents of NPs in the epoxy led to an almost linear increase in the selected performance properties. The highest (70%) improvement in the lap shear strength was observed with 4 wt % NPs, which was correlated with an increase in the hardness of composites.

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“…Incorporation of nanoparticles in the epoxy matrix, which enhanced the stiffness of the epoxy composite. This indicated that the polymer matrix-nanofiller interface was extremely effective and has shown greater intensity associated with the original polymer [24,33].…”

Section: Mechanical Propertiesmentioning

confidence: 97%

“…The as-prepared solution was poured into a suitable mould coated by Teflon sheets and was allowed to cure for 24 hours. The composite laminates of dimensions 150×200×3 mm thick were made [24]. Table 1 presents the laminates of various %wt.…”

Section: Preparation Of Nano Tio2 -Epoxy Compositesmentioning

confidence: 99%

Studies on thermal and mechanical behavior of nano TiO2 - epoxy polymer composite

Sagar

Madhu

Koteswararao

et al. 2022

CST

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The present study purposely is to study the properties of TiO2-epoxy composites. TiO2 was synthesized using the peptization and hydrolysis method and the synthesized powder is in anatase form. The present work aimed to develop the low TiO2 filler epoxy composites for the improved thermal and mechanical properties. The synthesized TiO2 was used as a filler along with epoxy composite and the epoxy - TiO2 nanocomposites were fabricated using the low filler concentration of 0.5, 1.0, 1.5, 2.0, and 2.5% by weight. The glass transition temperature (Tg), regardless of the nanoparticles, was almost the same at 71.23oC. Tensile strength was maximum at 0.5%wt.; further increase in filler loading resulted in a linear reduction of tensile strength. Tensile modulus increased linearly and was found to be maximum at 2.5wt%. Meanwhile, compressive strength was maximum at 0.5%, and compressive modulus increased with filler increase. The present work mainly aimed to develop low filler concentrations.

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Investigation of mechanical, thermal and electrical parameters of gel combustion-derived cubic zirconia/epoxy resin composites for high-voltage insulation

Cited by 13 publications

References 47 publications

"High-cycle fatigue and tensile strength of AZ91 Mg alloy with MAO-epoxy duplex coating "

"High-cycle fatigue and tensile strength of AZ91 Mg alloy with MAO-epoxy duplex coating "

Performance Augmentation of Epoxy Adhesives with TiN Nanoparticles

Studies on thermal and mechanical behavior of nano TiO2 - epoxy polymer composite

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