Nano-sized powders of SrFe12O19 synthesized by the sol-gel method

Ying Huang; Zhaofeng Du; Xiulan Qin; Wendong He

Nano-sized powders of SrFe₁₂O₁₉ synthesized by the sol-gel method

Ying Huang, Zhaofeng Du, Xiulan Qin, Wendong He

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

By means of inorganic salt precursor of strontium nitrate and ferric nitrate, the sol was confected by non-stoichiometry and the citric acid sol-gel method was used to prepare Sr-ferrite nanoparticles. The Sr-ferrites were characterized by X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and filed-emission scanning electronic microscope (FESEM). The development process, forming mechanism and the magnetic properties with temperature of Sr-ferrite were analyzed. The results show that the annealing of gels by 'two steps' method decreased non-magnetic material and declined the Sr-ferrite temperature of forming singleness. The Sr-ferrite forms at the temperature of 600-700°C and the singleness is acquired at the temperature of 900°C, the Sr-ferrite growth is consistent of the variety of magnetic properties. The maximum coercivity value was gained at 800°C, the coercivity value (H_c) and the specific saturation magnetization value (σ_s) is 454.16 kA/m, 55.91 A · m²/kg.

Original language	English
Pages (from-to)	324-328
Number of pages	5
Journal	Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
Volume	21
Issue number	3
State	Published - Jun 2007

Keywords

Inorganic non-metallic materials
Magnetic properties
Sol-gel
Strontium ferrite

Cite this

@article{7a41997ee19f4699906eff08e86178ab,

title = "Nano-sized powders of SrFe12O19 synthesized by the sol-gel method",

abstract = "By means of inorganic salt precursor of strontium nitrate and ferric nitrate, the sol was confected by non-stoichiometry and the citric acid sol-gel method was used to prepare Sr-ferrite nanoparticles. The Sr-ferrites were characterized by X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and filed-emission scanning electronic microscope (FESEM). The development process, forming mechanism and the magnetic properties with temperature of Sr-ferrite were analyzed. The results show that the annealing of gels by 'two steps' method decreased non-magnetic material and declined the Sr-ferrite temperature of forming singleness. The Sr-ferrite forms at the temperature of 600-700°C and the singleness is acquired at the temperature of 900°C, the Sr-ferrite growth is consistent of the variety of magnetic properties. The maximum coercivity value was gained at 800°C, the coercivity value (Hc) and the specific saturation magnetization value (σs) is 454.16 kA/m, 55.91 A · m2/kg.",

keywords = "Inorganic non-metallic materials, Magnetic properties, Sol-gel, Strontium ferrite",

author = "Ying Huang and Zhaofeng Du and Xiulan Qin and Wendong He",

year = "2007",

month = jun,

language = "英语",

volume = "21",

pages = "324--328",

journal = "Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research",

issn = "1005-3093",

publisher = "Chinese Journal of Materials Research",

number = "3",

}

TY - JOUR

T1 - Nano-sized powders of SrFe12O19 synthesized by the sol-gel method

AU - Huang, Ying

AU - Du, Zhaofeng

AU - Qin, Xiulan

AU - He, Wendong

PY - 2007/6

Y1 - 2007/6

N2 - By means of inorganic salt precursor of strontium nitrate and ferric nitrate, the sol was confected by non-stoichiometry and the citric acid sol-gel method was used to prepare Sr-ferrite nanoparticles. The Sr-ferrites were characterized by X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and filed-emission scanning electronic microscope (FESEM). The development process, forming mechanism and the magnetic properties with temperature of Sr-ferrite were analyzed. The results show that the annealing of gels by 'two steps' method decreased non-magnetic material and declined the Sr-ferrite temperature of forming singleness. The Sr-ferrite forms at the temperature of 600-700°C and the singleness is acquired at the temperature of 900°C, the Sr-ferrite growth is consistent of the variety of magnetic properties. The maximum coercivity value was gained at 800°C, the coercivity value (Hc) and the specific saturation magnetization value (σs) is 454.16 kA/m, 55.91 A · m2/kg.

AB - By means of inorganic salt precursor of strontium nitrate and ferric nitrate, the sol was confected by non-stoichiometry and the citric acid sol-gel method was used to prepare Sr-ferrite nanoparticles. The Sr-ferrites were characterized by X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and filed-emission scanning electronic microscope (FESEM). The development process, forming mechanism and the magnetic properties with temperature of Sr-ferrite were analyzed. The results show that the annealing of gels by 'two steps' method decreased non-magnetic material and declined the Sr-ferrite temperature of forming singleness. The Sr-ferrite forms at the temperature of 600-700°C and the singleness is acquired at the temperature of 900°C, the Sr-ferrite growth is consistent of the variety of magnetic properties. The maximum coercivity value was gained at 800°C, the coercivity value (Hc) and the specific saturation magnetization value (σs) is 454.16 kA/m, 55.91 A · m2/kg.

KW - Inorganic non-metallic materials

KW - Magnetic properties

KW - Sol-gel

KW - Strontium ferrite

UR - http://www.scopus.com/inward/record.url?scp=34547256582&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:34547256582

SN - 1005-3093

VL - 21

SP - 324

EP - 328

JO - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research

JF - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research

IS - 3

ER -

Nano-sized powders of SrFe₁₂O₁₉ synthesized by the sol-gel method

Abstract

Keywords

Other files and links

Fingerprint

Cite this