Vimala.et.al / Journal on Materials and its Characterization 2(2), June, 2023, 01-08 Copyright@ REST Publisher 1 Journal on Materials and its Characterization Vol: 2(2), June 2023 REST Publisher; ISSN: 2583-6412 Website: http://restpublisher.com/journals/jmc/ DOI: https://doi.org/10.46632/jmc/2/2/1 A Study on Alumina Nana Particles Mechanical Properties using the GRA Method *Vimala Saravanan, M. Ramchandran, Ashwini Murugan REST Labs, Kaveripattinam, Krishnagiri, Tamil Nadu, India. *Corresponding Author Email: vimala@restlabs.in Abstract: Alumina is nanoparticles one of which is chemically incompatible organics matrices such as poly (methyl methacrylate). In this study, nanoparticle interactions were enhanced by In situ polymerization of methyl methacrylate alumina nanoparticles, and these modified nanoparticles are used as useful additives in palm manufactured using injection molding process. Effect of modification process on dispersion quality of nanoparticles in was investigated by microscopy experiments. The results indicated that compared to unmodified alumina nanoparticles modified process, the alumina nanoparticles are excellent dispersion and connectivity. The Taguchi approach was implemented to optimize and Input parameters tests. MCDM methods were also process parameters. Impact and tensile strength of samples with 2 wt% modified alumina nanoparticles, therefore A-05 has higher values and A-03 has lower values respectively the A sample containing The same unmodified alumina nanoparticle content. Keywords: GRA, Mechanical Properties, Bio Mechanical Properties. 1. INTRODUCTION Alumina is nanoparticles one of the important metals oxidizes with good physic mechanical properties, but they have the problem of chemical incompatibility the polymer matrices. Various composition and in situ polymerization have been invented developed to overcome this problem. Mallakpur and Gamete studied aggregation Alumina nanoparticles into an organic matrix used provides, leading a variety of compounds with promising properties. In Tar Alumna's work, the nanoparticles were synthesized using a modified method. Polymeric nanocomposite applications are currently spreading across various aspects of science and industry Apart from light weight. Nevertheless, these properties can only be obtained in high quality materials products optimal manufacturing process. One of the main problems of nanocomposites is perfect compatibility the non- material underlying polymeric matrix, which greatly affects the final properties. Various A varieties of studies have been conducted in composites by trying to maximize applicability non-material. As maximize achieve Maximum output results. Multiple Criteria Decision Making (MCTM) methods are powerful tools for selecting test improve output characteristics. In these methods, Criteria are analyzed to choose alternative from all available options. A variety of MCDM methods are applied to engineering problems including material selection and process optimization. MCDM methods were used select one of were designed with Taguchi orthogonal array. Approaching MCDM, optimization hydro forming the process was conducted GRA methods. Abrasives were investigated using water jet cutting multi-response optimization GRA method, and the results point to it the multiple response characteristics the cutting process could optimized Using this MCDM method. A Multiple criteria result Analyzed Microcellular polymeric nanocomposites Injection Molding Choose the best models. Mechanical and morphological properties are Viewpoints. The best nanoparticles were selected using the MCDM method to improve Mechanical properties dental applications, so A-05 had high values and A-03 had low values. 2. MECHANICAL PROPERTIES Effect Na content the Impact strength the Models for modified and unmodified nanoparticles are illustrated with the addition of unmodified alumina nanoparticles; Impact strength increases A little, whereas impact strength increases with Addition of modified alumina nanoparticles. Incorporation of nanoparticles into Polymeric matrix improves strength effect nano composites Because of The crack-deflection effect of these materials. In other words, nanoparticles inhibit brittle crack growth the so the team, more material and impact strength are absorbed