The Microscopic Magnetic Properties of W-type Hexaferrite Powder Prepared by A Sol-Gel Route
Abstract
Magnetic particles of W-type barium-calcium hexaferrite (BaCa{sub 2}Fe{sub 16}O{sub 27}) have been synthesized using a Stearic acid gel route. The gel precursors were dried at 100 deg. C for 2 hrs and then calcinated at 650 deg. C, 750 deg. C, 850 deg. C and 950 deg. C for 4 hrs in a furnace and slowly cooled to room temperature in order to obtain barium-calcium hexaferrite particles. The microscopic magnetic properties of prepared samples studying using Moessbauer spectroscopy. Moessbauer spectra of all samples were recorded at room temperature. Mossbauer parameters like Isomer shift, Quadruple splitting etc. were calculated with respect to iron foil. Barium calcium hexaferrite samples heated at 650 deg. C, 750 deg. C, 850 deg. C show relaxation type Moessbauer spectra along with paramagnetic doublet. The intensity of paramagnetic doublet increases with temperature confirm the presence of ferrous ions in the samples, where as sample calcinated at 950 deg. C confirm the presence of ferrimagnetic phase with partial super paramagnetic nature of prepared hexaferrite sample.
- Authors:
-
- Material Science Research Laboratory, Department of Physics, University School of Sciences, Gujarat University, Ahmedabad 380 009 (India)
- Department of Physics, Saurashtra University, Rajkot 360 005 (India)
- Publication Date:
- OSTI Identifier:
- 21509983
- Resource Type:
- Journal Article
- Journal Name:
- AIP Conference Proceedings
- Additional Journal Information:
- Journal Volume: 1313; Journal Issue: 1; Conference: PEFM-2010: International conference on physics of emerging functional materials, Mumbai (India), 22-24 Sep 2010; Other Information: DOI: 10.1063/1.3530573; (c) 2010 American Institute of Physics; Journal ID: ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; FERRITES; FOILS; GELS; IONS; IRON; ISOMER SHIFT; MAGNETIC PROPERTIES; MOESSBAUER EFFECT; OCTADECANOIC ACID; PARAMAGNETISM; PARTICLES; POWDERS; RELAXATION; SOL-GEL PROCESS; ZEEMAN EFFECT; ALKALINE EARTH METAL COMPOUNDS; CARBOXYLIC ACIDS; CHARGED PARTICLES; COLLOIDS; DISPERSIONS; ELEMENTS; FERRIMAGNETIC MATERIALS; IRON COMPOUNDS; MAGNETIC MATERIALS; MAGNETISM; MATERIALS; METALS; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS
Citation Formats
Jotania, Rajshree, Chauhan, Chetna, and Sharma, Pooja. The Microscopic Magnetic Properties of W-type Hexaferrite Powder Prepared by A Sol-Gel Route. United States: N. p., 2010.
Web. doi:10.1063/1.3530573.
Jotania, Rajshree, Chauhan, Chetna, & Sharma, Pooja. The Microscopic Magnetic Properties of W-type Hexaferrite Powder Prepared by A Sol-Gel Route. United States. https://doi.org/10.1063/1.3530573
Jotania, Rajshree, Chauhan, Chetna, and Sharma, Pooja. 2010.
"The Microscopic Magnetic Properties of W-type Hexaferrite Powder Prepared by A Sol-Gel Route". United States. https://doi.org/10.1063/1.3530573.
@article{osti_21509983,
title = {The Microscopic Magnetic Properties of W-type Hexaferrite Powder Prepared by A Sol-Gel Route},
author = {Jotania, Rajshree and Chauhan, Chetna and Sharma, Pooja},
abstractNote = {Magnetic particles of W-type barium-calcium hexaferrite (BaCa{sub 2}Fe{sub 16}O{sub 27}) have been synthesized using a Stearic acid gel route. The gel precursors were dried at 100 deg. C for 2 hrs and then calcinated at 650 deg. C, 750 deg. C, 850 deg. C and 950 deg. C for 4 hrs in a furnace and slowly cooled to room temperature in order to obtain barium-calcium hexaferrite particles. The microscopic magnetic properties of prepared samples studying using Moessbauer spectroscopy. Moessbauer spectra of all samples were recorded at room temperature. Mossbauer parameters like Isomer shift, Quadruple splitting etc. were calculated with respect to iron foil. Barium calcium hexaferrite samples heated at 650 deg. C, 750 deg. C, 850 deg. C show relaxation type Moessbauer spectra along with paramagnetic doublet. The intensity of paramagnetic doublet increases with temperature confirm the presence of ferrous ions in the samples, where as sample calcinated at 950 deg. C confirm the presence of ferrimagnetic phase with partial super paramagnetic nature of prepared hexaferrite sample.},
doi = {10.1063/1.3530573},
url = {https://www.osti.gov/biblio/21509983},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1313,
place = {United States},
year = {Wed Dec 01 00:00:00 EST 2010},
month = {Wed Dec 01 00:00:00 EST 2010}
}