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A composite is a heterogeneous material system consisting of two or more distinct phases—matrix and reinforcement—that are mechanically bonded at their interface. This combination enhances the overall mechanical, thermal, and chemical properties beyond those of the individual constituents. The present study focuses on the fabrication of epoxy-based composites reinforced with Sisal fiber and S-glass fiber. Prior to fabrication, the sisal fibers were subjected to a 5% NaOH alkaline treatment to improve surface adhesion and interfacial bonding. During composite preparation, Nano Alumina (Al₂O₃) was incorporated at varying weight fractions of 1%, 1.5%, and 2% of the total composite weight. The fabricated composite specimens were then machined using a water jet process and tested for Shore D hardness in accordance with ASTM D2240 standards. The experimental results revealed that alkali treatment of fibers and the addition of Nano Alumina fillers led to a notable enhancement in the hardness of the developed hybrid composites.
Keywords:
Sisal, S-glass, Nano Alumina (Al₂O₃), Epoxy, hand layup process, Hardness
Cite Article:
"An experimental analysis of the Hardness
characteristics of Sisal fiber, S-Glass fiber, and Nano Alumina reinforced Polymer Matrix Composites", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2455-2631, Vol.10, Issue 11, page no.a506-a510, November-2025, Available :http://www.ijrti.org/papers/IJRTI2511060.pdf
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ISSN:
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator