One-step synthesis of the nanometer particles of γ-Fe2O3 by wire electrical explosion method

被引：26

作者：

Wang, Q ^{[1
]}

Yang, HB

Shi, JL

Zou, GT

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Jilin Univ, Natl Lab Superhard Mat, Changchun 130023, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2001年 / 36卷 / 3-4期

关键词：

magnetic materials; nanostructures; X-ray diffraction; magnetic properties;

D O I：

10.1016/S0025-5408(01)00544-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanoparticles of gamma -Fe2O3 with a mean particle size of 9 nm (an average nanograin size of 4 nm) have been prepared by an electrical explosion method through one-step. The particles were nearly equiaxed. The particle size distribution fits with log-normal distribution law as identified by SAXS. The coercivity and the saturation magnetization of the sample were determined to be as about 30% of those of the bulk materials by VSM. A possible mechanism for the formation of the gamma -Fe2O3 was proposed. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：503 / 509

页数：7

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