At present, the recycling of solid wastage Fly ash (FA) to generate high‐value products grows enormous interest. FA, micron sized powder, from Indian soil Chulha (a small earthen or brick stove), is a byproduct that can be utilized as filler in epoxy resin with different wt% due to its unique properties. The main objective of this considerable research work is to determine the thermal, mechanical, and morphological properties of epoxy resin with FA and nano CaCO3. Two different sets of composite samples were fabricated for investigating purposes. The first set of samples was fabricated with FA and DGEBA epoxy resin. Another set of samples was prepared by FA, DGEBA epoxy resin, and nano CaCO3. In both sets, FA was varied from 0% to 50% by weight and nano CaCO3 from 1% to 7% by weight. For better dispersion of FA and nano‐particles, ultrasonication technique was performed. The curing behavior of specimen has been evaluated by DSC, whereas SEM and FTIR techniques were used to analyze the morphological properties of epoxy/FA/nano CaCO3 nanocomposite. The observed results indicated that thermal and mechanical properties like tensile strength, Shore D hardness and impact strength were improved by an increment of FA and nano CaCO3 concerning that of neat epoxy. The scope of this paper is limited to FA from Indian soil Chulha.

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A recent development in the field of eco-friendly, lightweight and highperformance nanocomposite and a broad range of their innovative applications attract enormous interest in the field of research. However, the search for lighter materials to replace legacy heavy materials in engineering structures especially in automobile and aerospace industries has made the study of tribological properties of epoxy resin based composites significant. Fly ash, from the thermal power plant, is an industrial by-product that can be utilized as filler in epoxy resin with different wt% owing to its distinctive properties like low density, wide availability, good filler factor, good thermal resistance, and glassy nature instead of dumping into the large area of landfills and ash ponds. In this investigation broaden literature groundwork also covers the effect of nanoparticles on thermal, morphological and mechanical characteristics such as impact strength, tensile strength and flexural strength of fly ash/epoxy nanocomposites.