Magnetic properties of spindle-type iron fine particles obtained from hematite

被引：28
|
作者：
Varanda, LC
Jafelicci, M
Goya, GF
机构：
[1] UNESP, Inst Quim, Dept Quim Fis, BR-14801970 Araraquara, SP, Brazil
[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷
基金：
巴西圣保罗研究基金会;
关键词：
magnetic pigments; fine particles; magnetic recording media; iron particles;
D O I：
10.1016/S0304-8853(00)00668-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Spindle-type iron fine particles have been prepared by reduction of silica-coated-hematite particles. Hydrogen reduction of the coated-hematite cores yielded uniform spindle-type iron particles, which were stabilized by surface oxidation. Narrow particle distributions are observed from TEM measurements. X-ray, Mossbauer and magnetization data are in agreement with the presence of nanosized alpha -Fe particles, having surface layer of spinel structure oxide. Mossbauer spectra show that the oxide surface is superparamagnetic at room temperature. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：1933 / 1935
页数：3
相关论文
共 50 条
  • [21] Catalytic synthesis and characterization of spindle-type α–Fe2O3 particles
    Xiuli Zhang
    Hui Liu
    Yu Wei
    Journal of Materials Research, 2005, 20 : 628 - 635
  • [22] MAGNETIC-PROPERTIES OF ULTRA-FINE IRON PARTICLES
    JEN, SU
    LEE, CY
    YAO, YD
    LEE, KC
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 96 (1-3) : 82 - 88
  • [23] Magnetic interactions in hematite small particles obtained by ball milling
    Borzi, RA
    Stewart, SJ
    Punte, G
    Mercader, RC
    Vasquez-Mansilla, M
    Zysler, RD
    Cabanillas, ED
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 205 (2-3) : 234 - 240
  • [24] MAGNETIC PROPERTIES OF FINE-PARTICLE HEMATITE
    DUNLOP, DJ
    ANNALES DE GEOPHYSIQUE, 1971, 27 (03): : 269 - &
  • [25] The stability, characteristics and magnetic properties of iron carbide from an oolitic hematite
    Wang, H. H.
    Li, G. Q.
    Ma, J. H.
    Zhao, D.
    RSC ADVANCES, 2017, 7 (70): : 44456 - 44462
  • [26] Study of the structural and magnetic properties of metallic iron-hematite particles for use in magnetorheological fluids
    Osorio Ospina, Diana Marcela
    Castro Navas, Irvin Jadway
    Perez Alcazar, German Antonio
    Anselmo Tabares, Jesus
    HYPERFINE INTERACTIONS, 2012, 207 (1-3): : 1 - 5
  • [27] Study of the structural and magnetic properties of metallic iron-hematite particles for use in magnetorheological fluids
    Diana Marcela Osorio Ospina
    Irvin Jadway Castro Navas
    German Antonio Pérez Alcázar
    Jesus Anselmo Tabares
    Hyperfine Interactions, 2012, 207 : 1 - 5
  • [28] Synthesis and Magnetic Properties of Hematite Particles in a "Nanomedusa'' Morphology
    Lee, Jin Bae
    Kim, Hae Jin
    Luznik, Janez
    Jelen, Andreja
    Pajic, Damir
    Wencka, Magdalena
    Jaglicic, Zvonko
    Meden, Anton
    Dolinsek, Janez
    JOURNAL OF NANOMATERIALS, 2014, 2014
  • [29] MORPHOLOGY AND POROUS TEXTURE OF IRON FINE PARTICLES WITH RELATION TO THEIR MAGNETIC-PROPERTIES
    SUEYOSHI, T
    JOURNAL OF MATERIALS SCIENCE, 1987, 22 (03) : 860 - 866
  • [30] STRUCTURAL AND MAGNETIC PROPERTIES OF HEMATITE NANOCRYSTALLINE OBTAINED BY BALL MILLING
    Lemine, O. M.
    Msalam, R.
    Alyamani, A.
    Sajieddine, M.
    Mufti, S.
    Ziq, Kh.
    Salem, A. F.
    Bououdina, M.
    INTERNATIONAL JOURNAL OF NANOSCIENCE, 2009, 8 (03) : 267 - 272
12345