Paper Title:
A Comparative Study on the Morphology and Magnetic Properties of Barium and Strontium Hexaferrite Nanoparticles Synthesized by Co-Precipitation Method
  Abstract

Nanocrystalline strontium hexaferrite (SrFe12O19) and barium hexaferrite (BaFe12O19) powders were synthesized by co-precipitation method. The ‘as synthesized’ powders were heat treated (HT) at different temperatures ranging from 800 to 1200°C at a heating rate of 30°C /min in nitrogen atmosphere. Decomposition behaviour and the phases associated therein are investigated by thermal analysis (DTA/DTG/TG) and X-ray diffraction (XRD). Formations of ultrafine particles have been confirmed through field emission scanning electron microscop (FESEM). The superparamagnetic behavior of both, barium and strontium hexaferrite is confirmed by vibrating sample magnetometer (VSM). The increase in saturation magnetization from 1.94 to 31.05 emu/gm in case of barium hexaferrite and from 2.44 to 43.38 emu/gm for strontium hexaferrite is observed with HT temperatures. The changes in coercivity and remanence with HT temperatures for both the ferrites are analysed.

  Info
Periodical
Edited by
S. Ray, S.K. Nath, A. Kumar, R.C. Agarwala, V. Agarwala, G.P. Chaudhari, B.S.S. Daniel
Pages
203-208
DOI
10.4028/www.scientific.net/AMR.67.203
Citation
S. Tyagi, R. C. Agarwala, V. Agarwala, "A Comparative Study on the Morphology and Magnetic Properties of Barium and Strontium Hexaferrite Nanoparticles Synthesized by Co-Precipitation Method", Advanced Materials Research, Vol. 67, pp. 203-208, 2009
Online since
April 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Tatyana Koutzarova, Svetoslav Kolev, Kornely Grigorov, Chavdar Ghelev, Ivan Nedkov, Marcel Ausloos, Rudi Cloots, Tadeusz Mydlarz, Andrzej Zaleski
Abstract:Barium hexaferrite (BaFe12O19) powders of particle size of 130 and 180 nm were synthesized by a single microemulsion technique. The...
55
Authors: Shu Fang Zheng, Guo Xuan Xiong, Hai Qing Huang, Liu Jun Luo
Abstract:Nano-porous Barium ferrite (BaFe12O19) nanoparticles were synthesized by sol-gel technique using CTAB as template. The structure, morphology,...
257
Authors: Abhishek Kumar, Vijaya Agarwala, Dharmendra Singh
Chapter 2: Materials Characterization
Abstract:The Magnesium substituted barium hexaferrites were prepared by sol-gel auto-combustion method according to the molecular formula...
62
Authors: S. Hamidizadeh, A. Ataie, Amin Nozari
Chapter 9: Nanotechnology and Nanocomposites in Manufacturing
Abstract:Barium hexaferrite/high density polyethylene composite was prepared from synthesized barium hexaferrite as matrix with 0, 10, 20, 30, 40 wt.%...
860
Authors: Gui Fang Liu, Run Hua Fan, Ke Lan Yan, Xu Ai Wang, Kai Sun, Chuan Bing Cheng, Qing Hou
Symposium F: Electronic Materials
Abstract:Barium ferrite fibers and barium ferrite powders were successfully prepared respectively via Electrospinning method and sol-gel...
141