https://xpublication.com/index.php/jma <p>Launched in 2012, Journal of Materials and Applications (JMA) is a journal focusing entirely on publishing high quality papers in all areas of materials and their applications. The list of topics includes material science, all kinds of materials and their applications.</p> Tech Reviews Ltd en-US Journal of Materials and Applications 2051-7750 <p>Authors retain copyright of their work, with first publication rights granted to Tech Reviews Ltd.</p> https://xpublication.com/index.php/jma/article/view/890 <p>This paper presents the investigation of sliding wear of nickel-based coatings for piston cylinder application. Wear and friction between cylinder walls and pistons is a critical issue in industries like power generation, aerospace, and nuclear plants, contributing significantly to engine losses. NiCrBSiFeC has been coated on steel by high velocity oxy fuel thermal process and investigated on tribometer for sliding wear as per ASTM G99 standard. The design of experiments was done by considering normal load, speed and track diameter as variable with three level. &nbsp;The wear tracks are analyzed using electro discharge spectrum (EDS) analysis and scanning electron microscope (SEM) images. The specific Mass Wear Rate (MWR) and coefficient of frictions are compared for coated and uncoated conditions. The results indicated the significant improvement in the wear life for the coated sample with mild abrasive and delaminated wear mechanism.</p> Sanjay Rukhande Siddhant Amrutkar Abhishek Joshi Yash Jethwa Kaushal Gujar Aqleem Siddiqui Badal Kudachi ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2024-12-30 2024-12-30 13 2 21 29 10.32732/jma.2024.13.2.21 https://xpublication.com/index.php/jma/article/view/915 <p>Flame combustion enables the synthesis of diamonds via acetylene-oxygen gas flame combustion in ambient air. Recently, titanium has been used for dental implants in the dental industry. In this study, diamond films were synthesized on a Ti substrate using the flame combustion method to improve the strength, wear resistance, and biocompatibility of dental implant surfaces. Moreover, to obtain high-quality diamond films and various synthesized diamond crystallites sizes and to achieve good adhesion on the Ti substrate, as a condition of the synthesis to prevent delamination, the distance of the flame’s inner cone from the substrate surface was varied by 1.0, 1.5, 2.0, 3.0, 4.0, and 5.0 mm. Based on the results, diamond films were synthesized on a Ti substrate surface via flame combustion. The surface morphology of the synthesized films was altered by varying the distance between the inner cone of the flame and the substrate surface. This distance affected the surface morphology of the synthesized diamond films. The delamination of the synthesized films was prevented completely. To investigate the factors causing this result, nuclei were generated on the substrate during the initial stages of synthesis. The effect of the distance between the inner cone of the flame and the substrate surface on the diamond films synthesized by flame combustion was investigated. The relationship between this distance and the state of the diamond nuclei on the substrate in the initial stages of synthesis was verified.</p> Mamoru Takahashi Riki Suzuki Yoshiya Kurihara Reina Nagasawa Osamu Kamiya ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2024-12-30 2024-12-30 13 2 30 43 10.32732/jma.2024.13.2.30