High Saturation Induction for Bi-Substituted Yttrium Iron Garnet Prepared Via Sol Gel Technique

Yahya, Noorhana and Goh, Kah Hean (2007) High Saturation Induction for Bi-Substituted Yttrium Iron Garnet Prepared Via Sol Gel Technique. American Journal of Applied Sciences, 4 (2). pp. 80-84. ISSN 1546-9239

Full text not available from this repository.

Official URL: http://dx.doi.org/10.3844/ajassp.2007.80.84

Abstract

Y3.0-xBixFe5O12 samples (x = 0.2 and 0.4) were prepared via novel sol-gel and conventional solid-state techniques. The effect of bismuth in both techniques was investigated in terms of shrinkage,density, hysteresis and initial permeability. Sharp and clear diffraction XRD lines with highest peak appear at about 32° of the 2θ, for all the powders sintered at 900°C and 1250°C for both techniques. In evaluating the magnetic properties, it was observed that the saturation induction (1.1902kG) of sample prepared via sol-gel technique (Y2.8Bi0.2Fe5O12) is more than 200% higher than sample with the same formula prepared via conventional technique. Fine grained microstructure with average grain size of about 5μ m and higher shrinkage, about 11% were observed from the samples prepared via sol gel technique. It is concluded that samples prepared via sol gel technique appear to be an attractive route due to the possible reduction of cost of production and the enhanced magnetic and structural properties of the sample.

Item Type:Article
Keyword:Conventional solid state, hysteresis, initial permeability, sol gel technique, C(conventional) S (sol-gel)
Faculty or Institute:Faculty of Science
Publisher:Science Publications
DOI Number:10.3844/ajassp.2007.80.84
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3844/ajassp.2007.80.84
ID Code:7635
Deposited By: Najwani Amir Sariffudin
Deposited On:05 Aug 2010 04:49
Last Modified:05 Aug 2010 04:53

Repository Staff Only: Edit item detail

Document Download Statistics

This item has been downloaded for since 05 Aug 2010 04:49.

View statistics for "High Saturation Induction for Bi-Substituted Yttrium Iron Garnet Prepared Via Sol Gel Technique"


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.