Journal of Modern Materials https://journals.aijr.in/index.php/jmm <p align="justify"><a title="Click for Journal homepage" href="https://doi.org/10.21467/jmm" target="_blank" rel="noopener"><img style="float: right; padding-left: 15px; padding-right: 5px;" src="/public/site/images/aabahishti/JMM_cover_page.jpg" alt="JMM"></a> Journal of Modern Materials aims to enhance international exchange of scientific research activities related to all aspects of Material Science. It is an open access, peer-reviewed, materials research journal publishing quality research papers by AIJR Publisher.<br>Journal of modern materials is registered with CrossRef with doi: 10.21467/jmm&nbsp;and ISSN of this journal is &nbsp;2456-4834 [online].</p> en-US <div id="copyrightNotice">Author(s) retains full copyright of their article and grants non-exclusive publishing right to <strong>Journal of Modern Materials</strong> and its publisher “<a title="AIJR Publisher homepage" href="https://www.aijr.in/" target="_blank">AIJR</a> (India)”. Author(s) can archive pre-print, post-print and published version/PDF to any open access, institutional repository, social media or personal website provided that Published source must be acknowledged with citation and link to publisher version.<br>Click <a title="Copyright Policy" href="https://www.aijr.in/about/policies/copyright/" target="_blank">here</a> for more information on Copyright policy<br>Click <a title="Licensing Policy" href="/index.php/jmm/about#licensing">here</a> for more information on Licensing policy</div> jmm@aijr.in (J. Modern Mater. [AIJR]) amir@aijr.in (Technical Support) Mon, 06 Nov 2017 12:25:57 +0000 OJS 3.1.1.1 http://blogs.law.harvard.edu/tech/rss 60 Effect of Embedded Strain Gage on the Mechanical Behavior of Composite Structures https://journals.aijr.in/index.php/jmm/article/view/274 <p>Fiber reinforced composites are increasingly used in several fields such as aeronautics and civil engineering due to their increased strength, durability, corrosion resistance, resistance to fatigue and damage tolerance characteristics. The embedding of sensor networks into such composite structures can be achieved. In the present study, glass fiber reinforced Epoxy composite with integrated strain gage was analysed. Firstly, the mechanical behaviour of this material with embedded strain gage is investigated. The as-prepared samples have been tested under tensile and flexural loading in order to study the effects of the strain gage embedding on the structural stiffness and strength of the composite. It was found that the tensile stiffness decreases by 5.8% and the tensile strength decrease by 1.5% when the strain gage embedded in the material. On the other hand, the flexural strength and stiffness is increased, respectively, by 1.5% and 5.5% with an embedded strain gage. The experiments showed that embedded strain gage is functional and demonstrated the successful integration of sensor networks into composite parts. The obtained results confirm that integrated strain gage can be used for the Structural Health Monitoring (SHM) of glass fiber reinforced Epoxy composite.</p> Soufiane Belhouideg, Manuel Lagache (Author) ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc/4.0 https://journals.aijr.in/index.php/jmm/article/view/274 Mon, 06 Nov 2017 00:00:00 +0000 Effect of Electron Beam Irradiation on Polymers https://journals.aijr.in/index.php/jmm/article/view/559 <p>Electron energy loss spectroscopy (EELS) in combination with transmission electron microscopy (TEM) is widely used for chemical state analysis of variety of chemical compounds. High beam sensitivity of substances like polymers hinders the possibility of exploring in-depth analysis provided through the high spatially resolved EELS spectroscopy. In this study, the electron beam irradiation damage on polymers were analyzed with varying dose of electron beams. The stability of the polymers under electron beam exposure depends on the chemical structure on the polymers. In this study the polymers with and without phenyl groups namely Polycarbonate, Polyethylene terephthalate, Polystyrene, Styrene Maleic Anhydride and Polymethylmethacrylate are selected for the comparative degradation study. Effect of varying the electron dose on the stability of polymers were monitored by recording the low-loss EELS spectrum in π to π* transition and (π+σ) to (π+σ)* transition region.</p> Pradeep Singh, B R Venugopal, D R Nandini (Author) ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc/4.0 https://journals.aijr.in/index.php/jmm/article/view/559 Sat, 05 May 2018 00:00:00 +0000 Performance and Prospects of Severe Plastic Deformation for Effective Biomedical Titanium Alloys https://journals.aijr.in/index.php/jmm/article/view/406 <p>Application of severe plastic deformation (SPD) technology to process effective biomedical titanium alloys has shown promising results at laboratory scale. However, more research is still required before adopting this technology from laboratory scale to industrial scale production. This review presents performance and prospects of SPD for effective ultra-fine/nanograin structure-biomedical titanium alloys. Effective biomedical titanium alloys should have desired properties for the medical application. The properties include; high static and fatigue strengths, surface hardness for wear resistance, good ductility, corrosion resistance and biocompatibility. Based on current works reported in the literature, the review focused on; high-pressure torsion (HPT), equal channel angular pressing (ECAP), asymmetric rolling (AR), accumulative roll bonding (ARB) and repetitive corrugation and straightening (RCS). Overview of biomedical application of titanium alloys and desired material properties is presented. A detail discussion on the working principle, performance (e.g. induced strength, hardness, grain size and texture etc.) and material deformation homogeneity of each SPD method are presented. Also, prospects and challenges of each SPD method to be implemented at industrial scale for continuous and mass production are highlighted. The review concludes with the effectiveness of SPD processes, characteristics of processed samples and suggestion of future work for SPD to process effective biomedical titanium alloys at industrial scale.</p> Wambura Mwiryenyi Mwita, Esther Titilayo Akinlabi, Kazeem Oladele Sanusi (Author) ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc/4.0 https://journals.aijr.in/index.php/jmm/article/view/406 Mon, 26 Feb 2018 00:00:00 +0000 Epitaxial Lattice Matching and the Growth Techniques of Compound Semiconductors for their Potential Photovoltaic Applications https://journals.aijr.in/index.php/jmm/article/view/599 <p>This paper presents the recent advances in semiconductor alloys for photovoltaic applications. The two main growth techniques involved in these compounds are metal organic chemical vapor deposition (MOCVD) and molecular beam epitaxy (MBE), that has also been discussed. With these techniques, hetero-structures can be grown with a high efficiency. A combination of more than one semiconductor like GaAs, InGaAs and CuInGaAs increases the range of their electrical and optical properties. A large range of direct band gap, high optical absorption and emission coefficients make these materials optimally suitable for converting the light to electrical energy. Their electronic structures reveal that they are highly suitable for photovoltaic applications also because they exhibit spin orbit resonance and metal/semiconductor transitions. The dissociation energy has also been discussed in reference to the increased stability of these compounds.</p> Shagufta Bano Husain, Maruph Hasan (Author) ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc/4.0 https://journals.aijr.in/index.php/jmm/article/view/599 Mon, 04 Jun 2018 00:00:00 +0000