Effect of Addition of Micro-Sized Silicon Nitride on the Mechanical Properties of the Epoxy Composites
Subham Dhar Dhar
Paper Contents
Abstract
In the present investigation, the effect of the addition of silicon nitride particulates in the epoxy resin is investigated and presented. The main concentration of the work is on the mechanical properties of the developed material. The properties under investigation are tensile strength, compressive strength and hardness. All the properties are determined as a function of filler loading. The effect of modification of the surface of the silicon nitride using a silane coupling agent on the mentioned properties of the composites is also investigated. Four sets of composite specimens with filler content ranging up to 40 wt. % has been fabricated. From the experimental results, it is found that the inclusion of silicon nitride in the epoxy resin increases the compressive strength and hardness of the composite body as a function of filler loading. While studying the tensile strength, it is observed that the inclusion of filler first increases the tensile strength of the composite up to 20 wt. % of filler loading and later it starts decreasing when the content of filler increases further. It is also observed that the composite prepared with silane-modified silicon nitride shows better mechanical properties as compared to its counterpart for a given filler loading.
Copyright
Copyright © 2024 Subham Dhar. This is an open access article distributed under the Creative Commons Attribution License.