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The objective of this study was to look at the time-dependent behaviours of a PMMA toughened SiC particle added glass-epoxy composite. The primary goal of this study was to look at time-dependent behaviours including fatigue, fracture toughness, and viscoelasticity following toughening using PMMA and SiC fine fillers. The SiC particles used as a strength compensator were siliconized in an aqueous solution using 3-Aminopropyltriethoxysilane. All of the composites were made by hand layup process and characterised according to ASTM standards. The addition of PMMA to the epoxy resin increased energy absorption and release, according to the findings. Similarly, the SiC particle enhanced the composite’s total energy storage. The scanning electron microscope images demonstrated that the SiC particles were uniformly dispersed and adhered to the matrix. These high toughness glass-epoxy composites might be employed in high-damping-load applications, such as structural component fabrication, and vehicle body assembly.

This paper is aimed on the work to study and analyze the effects of salt bath nitriding of EN-24 low carbon steel. The nitriding process was implemented in the salt bath component for 30 min and temperature was constant at 570 °C. The coated sample is characterized using X-ray diffraction, Pin on disc and Microvicker hardness tester to study the structural, wear, mechanical and corrosion properties. Before coating, the material is thoroughly cleaned and etched. A typical salt bath nit riding thickness for our sample is ∼ 5 µm. The results obtained are then compared for before and after the nitriding. XRD results showed that formation of the nitrides FeN phase in the sample. EN 24 low carbons steel showed the hardness of 231 HV before nitriding and it increased to 371 HV. The wear studies indicated that the coefficient friction is 0.80 and wear is ∼ 150 µm. The hardness is increased 1.5 times approximately.

Non wear out brake emission is one of the significant issue concerns with health and the environment. In brakes performance, wear debris is released in the atmosphere and pollute the environment. The brake pad is classified into two categories mainly asbestos and non-asbestos. As per the report of WHO and Environment Protection Agencies, some of the metals oxidized and produces toxic gaseous. Toxicity leads and creates a bad effect on human health. This work focuses on remedies over environmental and health issues because of brake pad emission. It is important to reduce the percentage of toxic elements at source and develop novel material compositions that are less dangerous to the environment and human health. Also, it satisfies all requirements of a brake pad material as per international standards. From this investigation, we found an alternate material for brake bad applications. The natural fibers reinforcement material is zero toxic. So, the materials will not create any environmental and human health issues.