RESEARCH ARTICLE


Manufacturing of Manganese-Zinc Soft Ferrite by Powder Metallurgy



Deepak Bhalla*, 1, S. K. Aggarwal2, G. P. Govil1, Ish Kakkar1
1 Mechanical Engineering Department, Ideal Institute of Technology, Ghaziabad, India
2 Mechanical Engineering Department, Krishna Institute of Engineering & Technology, Ghaziabad, India


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© 2010 Bhalla et al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Mechanical Engineering Department, Ideal Institute of Technology, Ghaziabad, India; Tel: +911202767351; E-mail: dkbhalla999@yahoo.com


Abstract

Objective of this paper is, improvement of quality of Mn-Zn soft ferrites manufactured by powder metallurgy and overall output yield of it's plant. The efforts have been made to synthesize the crucial parameters which are responsible for better material preparation, pressing and sintering. By adopting these recommendations, the rejection rate is substantially reduced and the variation in magnetic properties is less. Data, which give more uniformity in bigger lots and are responsible for more uniform magnetic properties, have been discussed. Simple, quality-control instruments and their measurement methods which can be incorporated for stage inspection have been explained. The additives for better ferrite powder preparation, granules making and to obtain better magnetic have been discussed. Improved pressing, sintering, porosity, density and permeability relationship have been drawn. A sintering method to obtain better sintered density and high permeability in ferrites is also explained.

Keywords: Mn Zn ferrites manufacturing, powder metallurgy, process conditions, sintering.