Preparation and Characterization of Sr-Yig and Yig-Pva Composite

This thesis deals with the subject of magnetic properties utilizing iron garnet materials. The main purpose of this project is to prepare of Y3.0-XSrXFe5O12 and develop of YIG-PVA composite films. In addition, other properties including Q-factor, microstructure and XRD had also been studied. For...

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Main Author:	Shafie, Mohd Shamsul Ezzad
Format:	Thesis
Language:	English English
Published:	2009
Subjects:	Composite materials - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/5717/1/FS_2009_54_abstract.pdf
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id	my-upm-ir.5717
record_format	uketd_dc
spelling	my-upm-ir.57172013-05-27T07:24:39Z Preparation and Characterization of Sr-Yig and Yig-Pva Composite 2009 Shafie, Mohd Shamsul Ezzad This thesis deals with the subject of magnetic properties utilizing iron garnet materials. The main purpose of this project is to prepare of Y3.0-XSrXFe5O12 and develop of YIG-PVA composite films. In addition, other properties including Q-factor, microstructure and XRD had also been studied. For powder preparation, seven garnet powder samples were prepared which are Y3.0- XSrXFe5O12 (x = 0 to 2.5), in the interest of 0.5 value. From the results, the highest permeability obtained at sample Y3.0Fe5O12 (YIG) which is 1.58. The lowest loss factor is 7.41, which is obtained from sample Y1.5Sr1.5Fe5O12. From the XRD characterization, the peak changing from 32.31° to 32.89°, indicating the transition from YIG to Strontium based iron garnet. From the SEM analysis, the Y2.0Sr1Fe5O12 has the largest grain size while Y3S0 exhibit smallest grain size. As a conclusion, this sample can be utilized for high frequencies applications. Considering the best microstructure, highest permeability, lower LF, the best sample is YIG. It was chosen as filler in preparation polymer composite. For polymer composite preparation, the composites consisted of polyvinyl alcohol (PVA) and YIG were prepared by casting technique. YIG (1 wt%) and YIG (5 wt%) prepared as filler in polyvinyl alcohol (PVA) as polymer composite. Both YIG exhibit similar XRD patterns to standard YIG sample including extra peak for PVA at 40°. Compared to YIG (1 wt%), the YIG (5 wt%) was more effective to improve the magnetic properties of the composites because of its network structure. In conclusion, a certain high level of filler content was proven to be necessary for the promotion of magnetic properties in oriented composite. Composite materials - Case studies 2009 Thesis http://psasir.upm.edu.my/id/eprint/5717/ http://psasir.upm.edu.my/id/eprint/5717/1/FS_2009_54_abstract.pdf application/pdf en public masters Universiti Putra Malaysia Composite materials - Case studies Science English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Composite materials - Case studies
spellingShingle	Composite materials - Case studies Shafie, Mohd Shamsul Ezzad Preparation and Characterization of Sr-Yig and Yig-Pva Composite
description	This thesis deals with the subject of magnetic properties utilizing iron garnet materials. The main purpose of this project is to prepare of Y3.0-XSrXFe5O12 and develop of YIG-PVA composite films. In addition, other properties including Q-factor, microstructure and XRD had also been studied. For powder preparation, seven garnet powder samples were prepared which are Y3.0- XSrXFe5O12 (x = 0 to 2.5), in the interest of 0.5 value. From the results, the highest permeability obtained at sample Y3.0Fe5O12 (YIG) which is 1.58. The lowest loss factor is 7.41, which is obtained from sample Y1.5Sr1.5Fe5O12. From the XRD characterization, the peak changing from 32.31° to 32.89°, indicating the transition from YIG to Strontium based iron garnet. From the SEM analysis, the Y2.0Sr1Fe5O12 has the largest grain size while Y3S0 exhibit smallest grain size. As a conclusion, this sample can be utilized for high frequencies applications. Considering the best microstructure, highest permeability, lower LF, the best sample is YIG. It was chosen as filler in preparation polymer composite. For polymer composite preparation, the composites consisted of polyvinyl alcohol (PVA) and YIG were prepared by casting technique. YIG (1 wt%) and YIG (5 wt%) prepared as filler in polyvinyl alcohol (PVA) as polymer composite. Both YIG exhibit similar XRD patterns to standard YIG sample including extra peak for PVA at 40°. Compared to YIG (1 wt%), the YIG (5 wt%) was more effective to improve the magnetic properties of the composites because of its network structure. In conclusion, a certain high level of filler content was proven to be necessary for the promotion of magnetic properties in oriented composite.
format	Thesis
qualification_level	Master's degree
author	Shafie, Mohd Shamsul Ezzad
author_facet	Shafie, Mohd Shamsul Ezzad
author_sort	Shafie, Mohd Shamsul Ezzad
title	Preparation and Characterization of Sr-Yig and Yig-Pva Composite
title_short	Preparation and Characterization of Sr-Yig and Yig-Pva Composite
title_full	Preparation and Characterization of Sr-Yig and Yig-Pva Composite
title_fullStr	Preparation and Characterization of Sr-Yig and Yig-Pva Composite
title_full_unstemmed	Preparation and Characterization of Sr-Yig and Yig-Pva Composite
title_sort	preparation and characterization of sr-yig and yig-pva composite
granting_institution	Universiti Putra Malaysia
granting_department	Science
publishDate	2009
url	http://psasir.upm.edu.my/id/eprint/5717/1/FS_2009_54_abstract.pdf
_version_	1747810470237044736

Preparation and Characterization of Sr-Yig and Yig-Pva Composite

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