Investigation on mechanical behavior of B4C dispersed advanced novel composites fabricated through molding and curing

Jappes, J.T. Winowlin; Jothiraj, P.; Jappes, J.T. Winowlin; Nagaveena, S.; Sharma, R. Krishna; Raja, Yuvan Nirmal; Sooriya, Siva

doi:10.1016/j.matpr.2021.01.942

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…The composite laminates for radiation shielding were effectively prepared through a layered molding and curing route [17,18], and are depicted in Figure 1(c). Rectangular molds of dimension 300 mm × 130 mm × 15 mm were used for making the laminates for radiation shielding.…”

Section: Experimental Methodsmentioning

confidence: 99%

Development of Lightweight Polymer Laminates for Radiation Shielding and Electronics Applications

Jappes

Nagaveena

et al. 2022

International Journal of Polymer Science

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The present study portrays the development of lightweight epoxy laminates filled with boron carbide (B4C) and lead (Pb) particles through a novel layered molding and curing route. Six different laminates of single and tri-layers were prepared with varying compositions and were subjected to thermal, radiation shielding, and dielectric studies. Radiation shielding test were done using a narrow beam setup with six different sources such as Cobalt-57 (Co57-122 keV), Barium-133 (Ba133-356 keV), Sodium-22 (Na22-511 and 1275 keV), Cesium-137 (Cs137-662 keV), Manganese-54 (Mn54-840 keV), and Cobalt-60 (Co60-1170 and 1330 keV). The dielectric studies were done to understand the dielectric constant, dielectric loss factor, and AC conductivity at different temperature and frequency ranges. From the characterizations, it was found that the thermal stability of the single-layered sample increased with respect to the addition of B4C and Pb particles, which may be due to the thermally stable nature of the particles. The radiation shielding study of the samples witnessed the superior characteristics and radiation shielding ability of sample D (40% Pb) and sample E with Pb cladding at incident gamma radiation energy of 662 keV. The dielectric constant of the samples increased significantly at higher temperatures and the dielectric loss factor increased with an increase in temperature and decreased with an increase in frequency. The AC conductivity of the samples increased with respect to an increase in temperature and frequency.

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Section: Experimental Methodsmentioning

confidence: 99%

Development of Lightweight Polymer Laminates for Radiation Shielding and Electronics Applications

Jappes

Nagaveena

et al. 2022

International Journal of Polymer Science

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“…However, the scanning electron microscopic image depicted in Figures 7(c) and 7(d) clearly shows the length trace of wear path. is may be because of the inherent resistant behavior of the wear debris from forming further wear in the surface owing to its strong interfacial bonding with the matrix [15][16][17]. is could be the reason that the wear debris itself acts as an inhibitor to the wear.…”

Section: Fractography Studiesmentioning

confidence: 99%

Mechanical Loading and Tribological Studies on Boron Carbide (B4C) and Lead (Pb) Particles Dispersed Epoxy-Based Multilayered Composites

Jappes

Khan

et al. 2022

Advances in Materials Science and Engineering

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The study aims in the development of functionally graded epoxy-based layered composites dispersed with B4C and lead particles. The development route adopted for the composites is a novel route called layered molding and curing. Various compositions of single and trilayered composites were prepared through the abovementioned route. The samples prepared were subjected to mechanical and tribological studies, and the results were reported in this article. It is found that the mechanical properties of the single-layered composites consisting of 20% lead and 20% B4C show superior characteristics than those of the samples with increased addition of lead. However, the trilayered samples with lead core showcased excellent mechanical properties. On the other hand, the wear rate and mass loss of the trilayered samples with B4C cladding show minimum wear rate than the samples with lead cladding. Furthermore, the coefficient of friction of the samples also showcases the better performance of single-layered samples with 20% lead. The worn surface analysis done through scanning electron microscopy and stereo zoom microscopy reveals the reason for the low specific wear rate of 20% lead sample as the self-hindrance of wear debris evolved during the wear study.

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Investigation on mechanical behavior of B4C dispersed advanced novel composites fabricated through molding and curing

Cited by 2 publications

References 9 publications

Development of Lightweight Polymer Laminates for Radiation Shielding and Electronics Applications

Development of Lightweight Polymer Laminates for Radiation Shielding and Electronics Applications

Mechanical Loading and Tribological Studies on Boron Carbide (B4C) and Lead (Pb) Particles Dispersed Epoxy-Based Multilayered Composites

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