| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1797035 | Journal of Crystal Growth | 2006 | 6 Pages |
Abstract
The study investigates the effects of hafnia (0.2, 0.4 and 0.6Â wt%) along with impurities such as 0.02Â wt% SiO2 and 0.04Â wt% CaO on the microstructure and magnetic properties of Mn-Zn ferrites. The specimens have been prepared by the conventional mixed oxide method. It has been revealed that the substitution of hafnium into Mn-Zn ferrites enhances the grain growth. Measurements of initial permeability, resistivity and power loss have been related to the microstructure of sintered ferrites in particular to grain size, porosity and grain boundary phases. The present paper gives a summary that optimum properties could be achieved with additive level of 0.4Â wt% HfO2.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Ammad H. Qureshi,