Structural, Mechanical, Electrical and Magnetic Properties of Mn–Zn Substituted Ca-hexaferrites
Parole chiave:
XRD, X-ray density, porosity, SEM, Poisson’s ratio, Curie temperature.Abstract
In the present investigation, the samples with chemical composition Ca(CoTi)0.5(MnZn)x/2Fe11–xO19 with (x = 0 to 1.0) have been synthesized using perfect stoichiometric proportions of reacting oxides by standard ceramic technique. The pellets of 15 mm diameter were prepared and sintered at 1313 K in air atmosphere for 106 h and characterized by using XRD and SEM. XRD studies of the samples showed hexagonal magnetoplumbite (M) structure with unit cell dimensions “a’ and “c” varies from 5 to 6 Å and 21 to 23 Å pertaining to space group P63/mmc (No. 194). The mass density of the ferrites were found to vary linearly and depend upon the sample’s mass and volume. The X-ray density depends on lattice constant and molecular weight of the sample. The computation of porosity has been done by considering bulk and X-ray density of the studied samples. The variation in the values of lattice parameter has to be recorded with increase in Mn–Zn concentration. The elastic properties of Mn–Zn doped Ca-hexaferrite have been studied using ultrasonic pulse transmission technique at 100 kHz at 300 K. The field-dependent electric and magnetic properties of prepared Ca-hexaferrite powder were investigated at different temperatures.Keywords: XRD, X-ray density, porosity, SEM, Poisson’s ratio, Curie temperature.File supplementari
Pubblicato
Fascicolo
Sezione
Licenza
Declaration and Copyright Transfer Form
(to be completed by authors)
I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.
· I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
· I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
· I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
· I/We also agree to the authorship of the article in the following order:
Author’s name
1. ________________
2. ________________
3. ________________
4. _______________
We Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal. |
