HYDROTHERMAL PREPARATION AND CHARACTERIZATION OF ULTRAFINE MAGNETITE POWDERS

被引：40

作者：

QIAN, Y ^{[1
]}

XIE, Y ^{[1
]}

HE, C ^{[1
]}

LI, J ^{[1
]}

CHEN, Z ^{[1
]}

机构：

[1] UNIV SCI & TECHNOL CHINA,STRUCT RES LAB,ANHUI 230026,PEOPLES R CHINA

来源：

MATERIALS RESEARCH BULLETIN | 1994年 / 29卷 / 09期

关键词：

MAGNETITE; IRON OXIDES; IRON;

D O I：

10.1016/0025-5408(94)90055-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ultrafine magnetite particles were prepared through a hydrothermal process at 130-degrees-150-degrees-C from a solution of iron chloride and iron powder in the presence of urea. XRD and chemical analysis indicated that the product was magnetite. The size and morphology of the particles were studied by TEM. The magnetite particles had a coercive force of 175 Oe and a saturation magnetization of 82.2 e.m.u./g. The reactive mechanism in the hydrothermal process was proposed.

引用

页码：953 / 957

页数：5

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