Influence of silicon carbide filler on mechanical and dielectric properties of glass fabric reinforced epoxy composites

Abstract

Fiber-reinforced polymeric composites (FRPCs) have emerged as an important material for automotive, aerospace, and other engineering applications because of their light weight, design flexibility, ease of manufacturing, and improved mechanical performance. In this study, glass-epoxy (G-E) and silicon carbide filled glass-epoxy (SiC-G-E) composite systems have been fabricated using hand lay-up technique. The mechanical properties such as tensile strength, tensile modulus, elongation at break, flexural strength, and hardness have been investigated in accordance with ASTM standards. From the experimental investigations, it has been found that the tensile strength, flexural strength, and hardness of the glass reinforced epoxy composite increased with the inclusion of SiC filler. The results of the SiC (5 wt %)-G-E composite showed higher mechanical properties compared to G-E system. The dielectric properties such as dielectric constant (permittivity), tan delta, dielectric loss, and AC conductivity of these composites have been evaluated. A drastic reduction in dielectric constant after incorporation of conducting SiC filler into epoxy composite has been observed. Scanning electron microscopy (SEM) photomicrographs of the fractured samples revealed various aspects of the fractured surfaces. The failure modes of the tensile fractured surfaces have also been reported.

The effect of Portland cement inclusions in hybrid glass fibre reinforced composites based on a full factorial design

“…Composite materials have been considered as substitutes for metallic materials, owing to their conformability and high specific mechanical properties. Composites have been used in a variety of applications in aerospace, automotive and construction industries owing to their low density and custom-engineered mechanical, thermal and acoustic properties [1,2]. Epoxy polymer is one of the most used thermosetting materials owing to its easy processing and fabrication, simple tooling and excellent adhesive and optically transparent properties [3].…”

“…Particle inclusions can act as barriers against crack propagation and also enhance compressive modulus and strength of the matrix [6]. Particle size and weight fraction for matrix reinforcement are therefore selected to provide higher specific properties for the composite material [2]. Garg and Mai [7] extensively reviewed the toughening mechanisms of micro fillers in epoxy polymers.…”

Improvement in the Tribological Performance of Polycarbonate via the Incorporation of Molybdenum Disulfide Particles

“…B. BEN DIFALLAH 1,2,3 , M. KHARRAT 1, 4* , M. DAMMAK 1,4 and G. improves its abrasive wear and sliding performance with a content of MoS 2 for minimum wear rate around 10 wt%. They also reported that, under sliding conditions, the main wear mechanism of HMW-HDPE was changed from severe melting wear to mild adhesive wear.…”

The Effect ofSilicon CarbideAddition into Fibreglass Reinforced Composites

“…The dynamic flexu ral loadings in aircraft fuselage must be cons idered in th e structu ral d es ign . In th is case, the composites must provide high stiffness and fatigueresistance [5,6].…”

“…. % × − = weight cond weight recond weight cond (6) Recond. weight: mass of sample reconditioned in water after removal of there.…”