Indian Journal of Engineering & Materials Sciences

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Processing parameters in the ball milling of niobium hydride: An optimization approach


Affiliations
1 Federal University of Itajubá, Department of Mechanical Engineering, UNIFEI/IEM, Avenida BPS, 1303, Itajubá-MG, 37500 – 903, Brazil
2 Federal University of Itajubá, Department of Production Engineering and Management, UNIFEI/IEPG, Avenida BPS, 1303, Itajubá-MG, 37500 – 903, Brazil
3 Polytechnic University of Milan,Department of Civil and Environmental Engineering, POLIMI/DICA, Piazza Leonardo da Vinci, 32, Milano-MA, 20133, Italy
4 Federal University of Itajubá, Department of Mechanical Engineering, UNIFEI/IEM, Avenida BPS, 1303, Itajubá-MG, 37500 – 903, Brazil

Due to its particular properties, niobium has been widely used in the industry. In order to produce niobium-base parts, its powder can be obtained through a powder metallurgy’s method called ball milling. In this article, the ball milling parameters, in the production of niobium’s powder,have been optimized using the Taguchi’s method in order to obtain a high yield in the process, considering a particle size smaller than 75 mm. Taguchi’s method, among several experimental designs, has been chosen due to its simplicity, efficiency and systematic approach to determine the optimal parameters in a manufacturing process. The experimental results have been indicated that the milling speed and time are the main variables in the process. In addition, the morphology of niobium hydride particles with the lowest and highest yield has been analyzed through the electron microscopy’s scanner.
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  • Processing parameters in the ball milling of niobium hydride: An optimization approach

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Authors

Gilbert Silva
Federal University of Itajubá, Department of Mechanical Engineering, UNIFEI/IEM, Avenida BPS, 1303, Itajubá-MG, 37500 – 903, Brazil
Dalton Garcia Borges de Souza
Federal University of Itajubá, Department of Production Engineering and Management, UNIFEI/IEPG, Avenida BPS, 1303, Itajubá-MG, 37500 – 903, Brazil
Dalton Garcia Borges de Souza
Polytechnic University of Milan,Department of Civil and Environmental Engineering, POLIMI/DICA, Piazza Leonardo da Vinci, 32, Milano-MA, 20133, Italy
Lucas Catalani Gabriel
Federal University of Itajubá, Department of Production Engineering and Management, UNIFEI/IEPG, Avenida BPS, 1303, Itajubá-MG, 37500 – 903, Brazil
Geovani Rodrigues
Federal University of Itajubá, Department of Mechanical Engineering, UNIFEI/IEM, Avenida BPS, 1303, Itajubá-MG, 37500 – 903, Brazil
Carlos Eduardo Sanches da Silva
Federal University of Itajubá, Department of Production Engineering and Management, UNIFEI/IEPG, Avenida BPS, 1303, Itajubá-MG, 37500 – 903, Brazil

Abstract


Due to its particular properties, niobium has been widely used in the industry. In order to produce niobium-base parts, its powder can be obtained through a powder metallurgy’s method called ball milling. In this article, the ball milling parameters, in the production of niobium’s powder,have been optimized using the Taguchi’s method in order to obtain a high yield in the process, considering a particle size smaller than 75 mm. Taguchi’s method, among several experimental designs, has been chosen due to its simplicity, efficiency and systematic approach to determine the optimal parameters in a manufacturing process. The experimental results have been indicated that the milling speed and time are the main variables in the process. In addition, the morphology of niobium hydride particles with the lowest and highest yield has been analyzed through the electron microscopy’s scanner.