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

Authors
Wang, Q Yang, HB Shi, JL Zou, GT
Citation
Q. Wang et al., One-step synthesis of the nanometer particles of gamma-Fe2O3 by wire electrical explosion method, MATER RES B, 36(3-4), 2001, pp. 503-509
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS RESEARCH BULLETIN
ISSN journal
00255408 → ACNP
Volume
36
Issue
3-4
Year of publication
2001
Pages
503 - 509
Database
ISI
SICI code
0025-5408(200102/03)36:3-4<503:OSOTNP>2.0.ZU;2-O
Abstract
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 meth od through one-step. The particles were nearly equiaxed. The particle size distribution fits with log-normal distribution law as identified by SAXS. T he coercivity and the saturation magnetization of the sample were determine d to be as about 30% of those of the bulk materials by VSM. A possible mech anism for the formation of the gamma -Fe2O3 was proposed. (C) 2001 Elsevier Science Ltd. All rights reserved.