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Kataraki, Pramodkumar S
- Analysis of Connecting Rod Made by Using Micro Si3N4 Particulates Reinforced with Al2024 Alloy
Authors
1 School of Mechanical Engineering, REVA University, Bengaluru, India., IN
2 PG Scholar, Dr Ambedkar Institute of Technology, Bengaluru, India., IN
3 Intelligent and Smart Manufacturing Centre, Center for Mechanical Engineering Studies, Universiti Teknologi MARA,Penang Branch, Malaysia., MY
4 School of Mechanical Engineering, Vellore Institute of Technology, Chennai, Tamil Nadu 600127, India., IN
Source
Journal of Mines, Metals and Fuels, Vol 70, No 10A (2022), Pagination: 21-26Abstract
In the present work, an attempt has been made to synthesize metal matrix composite using Al2024 as matrix material with Si3N4 particulates and K2TiF6 reinforcement using liquid metallurgy route in particular stir casting technique. The addition level of reinforcement is being varied from 4-8% in steps of 4 wt%. For each composite, reinforcement particles were preheated to a temperature of 500ºC and then dispersed in steps of three into the vortex of molten Al2024 alloy rather than introducing all at once, there by trying to improve wettability and distribution. Microstructural characterization was carried out for the above prepared composites by taking specimens from central portion of the casting by microstructural studies and SEM analysis. Tensile, Impact, and Fatigue properties of the prepared composite were studied before and after addition of Al2024 particulates to note the extent of improvement. Microstructural characterization of the composites has revealed fairly uniform distribution of Si3N4 particulates and some amount of grain refinement in the specimens. SEM analysis revealed the presence of Si3N4 and other phases. Further, the Tensile and Impact strength of the composite found increased with increased filler content.
Keywords
Al2024 Alloy, Si 3 N 4 , Yield Strength, Tensile Strength, Elongation Percentage, Impact Strength, FEA, Fatigue Strength.
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- Design and Analysis of Bipolar Plate of Polymer Electrolyte Membrane Fuel Cell Assembly used for Automotive Applications
Authors
1 chool of Mechanical Engineering, REVA University, Bengaluru 560064, Karnataka, India., IN
2 School of Mechanical Engineering, Vellore Institute of Technology, Chennai, Tamil Nadu 600127, India., IN
3 Intelligent and Smart Manufacturing Centre, Center for Mechanical Engineering Studies, UniversitiTeknologi MARA,Penang Branch, Malaysia., MY
4 Department of Mechanical Engineering, Al-Huson University College, Al-Balqa Applied Uni-versity, Irbid, Jordan., JO
5 Department of Industrial Engineering, Universitas Sumatera Utara, Medan 20155, Indonesia., ID
6 Advanced Material Research Cluster, Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan, Jeli,Kelantan, Malaysia., MY
7 School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, Seri Ampangan, 14300 NibongTebal,Penang, Malaysia., MY
Source
Journal of Mines, Metals and Fuels, Vol 70, No 10A (2022), Pagination: 306-310Abstract
A polymer electrolyte membrane fuel cell (PEMFC) is defined as a type of fuel cell used to generate voltage and current. A fuel cell produces very small amount of electrical energy about 0.7 volts. So, it is essential to stack the fuel cells in bipolar plate series connection for the production of the large amount of electrical energy to fulfil the requirement. However, it is required to stack them with uniform pressure distribution in order to minimize the chance of BPP, MEA and GDL damage, fuel leakage and contact resistance. The mechanical properties and geometrical attributes of PEMFC stack components were collected with the help of many journal papers and books for the sake of their design and simulation work. In this study, the finite element analysis (FEA) were employed to simulate the bipolar plates meant for the assessment of the uniform stress dissemination.
Keywords
Polymer Electrolyte Membrane Fuel Cell, Bipolar Plate, Membrane Electrode Assembly, Gas Diffusion Layer and Finite Element Analysis.References
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