The stabilization of ultrafine powder of Fe2O3 due to additives

被引：0
|
作者：
Sun, Tong [1 ]
Shen, Yusheng [1 ]
Liu, Yong [1 ]
机构：
[1] Dept of Material Science U.S.T.C., Hefei, China
来源：
Wuji Cailiao Xuebao/Journal of Inorganic Materials | 1994年 / 9卷 / 01期
关键词：
Additives - Iron oxides - Stabilization;
D O I：
暂无
中图分类号：
TM27 [磁性材料、铁氧体];
学科分类号：
摘要：
The size of powder has direct effect on the material sensitivity. In order to prevent ultrafine particles of Fe2O3 from growing larger during sintering process, alkaline earth metal ions were doped into a pure Fe2O3 system to the extent of 5 mol%. XRD and TEM were employed to investigate their stabilization. As a result, it is found that the electrical conductance of the Fe2.O3 system is changed. A model is proposed to interpret this change and a satisfactory explanation is obtained. The curve of conductance-temperature also verifies the reasonableness of the method.
引用
收藏
页码：107 / 110
相关论文
共 50 条
  • [31] Combustion derived ultrafine γ-Fe2O3 -: Structure, morphology and thermal studies
    Mallikarjuna, NN
    Govindaraj, B
    Lagashetty, A
    Venkataraman, A
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2003, 71 (03) : 915 - 925
  • [32] Effect of surface decoration on the spectral characteristics of α-Fe2O3 ultrafine particles
    Liu, CL
    Zhong, JH
    Zhang, ZK
    SPECTROSCOPY AND SPECTRAL ANALYSIS, 2003, 23 (01) : 154 - 156
  • [33] The reducibility of Fe2O3 and supported Ru/Fe2O3 catalysts
    Józwiak, WK
    Maniecki, TP
    Gebauer, D
    PRZEMYSL CHEMICZNY, 2003, 82 (03): : 134 - 137
  • [34] The synthesis of maghemite and hematite (γ-Fe2O3, α-Fe2O3) nanospheres
    Dar, M. A.
    Ansari, S. G.
    Wahab, R.
    Kim, Young-Soon
    Shin, Hyung-Shik
    PROGRESS IN POWDER METALLURGY, PTS 1 AND 2, 2007, 534-536 : 157 - +
  • [35] FORMATION OF ULTRAFINE FE2O3 AEROSOLS FROM A FLAME SUPPORTED REACTION
    VERGNON, PG
    LANDOULSI, HB
    INDUSTRIAL & ENGINEERING CHEMISTRY PRODUCT RESEARCH AND DEVELOPMENT, 1980, 19 (02): : 147 - 151
  • [36] Combustion Derived Ultrafine γ-Fe2O3 Structure, morphology and thermal studies
    N. N. Mallikarjuna
    B. Govindaraj
    A. Lagashetty
    A. Venkataraman
    Journal of Thermal Analysis and Calorimetry, 2003, 71 : 915 - 926
  • [37] Synthesis and physical characterization of γ-Fe2O3 and (α+γ)-Fe2O3 nanoparticles
    P. Bhavani
    N. Ramamanohar Reddy
    I. Venkata Subba Reddy
    Journal of the Korean Physical Society, 2017, 70 : 150 - 154
  • [38] Comparative Study on Electronic Structure and Optical Properties of α-Fe2O3, Ag/α-Fe2O3 and S/α-Fe2O3
    Zhao, Cuihua
    Li, Baishi
    Zhou, Xi
    Chen, Jianhua
    Tang, Hongqun
    METALS, 2021, 11 (03) : 1 - 13
  • [39] Differences in Electrophysical and Gas Sensing Properties of Flame Spray Synthesized Fe2O3(γ-Fe2O3 and α-Fe2O3)
    Flak, Dorota
    Braun, Artur
    Michalow, Katarzyna A.
    Wyrwa, Jan
    Parlinska-Wojtan, Magdalena
    Graule, Thomas
    Rekas, Mieczyslaw
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2012, 12 (08) : 6401 - 6411
  • [40] An α-Fe2O3 powder of nanosized particles via precursor dispersion
    Xiangyuan Liu
    Jun Ding
    John Wang
    Journal of Materials Research, 1999, 14 : 3355 - 3362
12345