Research Article Mechanical and Morphological Studies of Sansevieria trifasciata Fiber-Reinforced Polyester Composites with the Addition of SiO 2 and B 4 C P. Hariprasad, 1 M. Kannan, 1 C. Ramesh, 1 A. Felix Sahayaraj, 1 I. Jenish , 2 Fayaz Hussain, 3 Nidhal Ben Khedher, 4,5 Attia Boudjemline, 6 and V. Suresh 7 1 Department of Mechanical Engineering, Kalaignar Karunanidhi Institute of Technology, Coimbatore 641402, Tamilnadu, India 2 Department of Applied Mechanics, Seenu Atoll School, Addu, Ministry of Education, Maldives 3 Faculty of Integrated Technologies, Universiti Brunei Darussalam, Brunei Darussalam 4 Department of Mechanical Engineering, College of Engineering, University of Ha’il, Ha’il 81451, Saudi Arabia 5 Laboratory of ermal and Energetic Systems Studies (LESTE) at the National School of Engineering of Monastir, University of Monastir, Monastir 5000, Tunisia 6 Department of Industrial Engineering, College of Engineering, University of Ha’il, Ha’il 81451, Saudi Arabia 7 Department of Biotechnology, Sharafuddin School, Hithadhoo, Postal Code 19020, Maldives Correspondence should be addressed to V. Suresh; suresh.velse@sharafuddin.edu.mv Received 31 March 2022; Accepted 6 June 2022; Published 11 July 2022 Academic Editor: K. Raja Copyright © 2022 P. Hariprasad et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. e impact of SiO 2 and B 4 C on mechanical and morphological studies of Sansevieria trifasciata fiber (STF) reinforced in polyester composites is investigated in this study. STF fibers are reinforced with polyester composites with the addition ceramic fillers such as SiO 2 and B 4 C in various weight fractions to improve tensile, flexural, and impact characteristics. e morphological properties are studied with the help of scanning electron microscopy (SEM). e improved mechanical properties were tensile strength (44.92 MPa), flexural strength (103.58 MPa), and impact strength (27.4 kJ/m 2 ) obtained for 20 wt.% STF fiber and 15 wt.% SiO 2 reinforcement with the polyester matrix. e mechanical characteristics of the composites were significantly influenced by increasing SiO 2 up to 15 wt.%. 1. Introduction Natural fiber-reinforced composites (NFRC) have been more important in specialized applications ranging from sports to biomedicine and the military in recent decades. Automotive industries, sporting goods, and structural components are dominated by composites derived from petroleum-based synthetic fibers. Synthetic fibers are often used in a variety of sectors due to their excellent mechanical qualities and inexpensive cost. ese fibers, on the other hand, have several drawbacks, including high cost, causing environmental pollution by emitting greenhouse gases [1]. When petroleum-based goods are burned, a large quantity of CO 2 is released into the atmosphere. Natural fibers are gradually replacing petroleum-based fibers due to concerns about the environment, sustainability, and the need for biodegradable and energy-efficient products [2, 3]. Jute, sisal, kenaf, and hemp are some of the frequently used natural fibers [4–7]. Natural fibers derived from plants are mostly composed of various elements (cellulose, hemi- cellulose, lignin, etc.) [8, 9]. Compared to synthetic fibers, natural fibers have numerous advantages including light density, low cost, simple availability, biodegradability, recyclability, easy processing, and minimum health con- cerns [10, 11]. Meanwhile, they need to improve the fol- lowing properties such as matrix fiber adhesion, thermal stability, and mechanical strength [12]. When compared to synthetic fiber composites, poor matrix fiber adhesion is Hindawi Advances in Materials Science and Engineering Volume 2022, Article ID 1634670, 5 pages https://doi.org/10.1155/2022/1634670