Magnetic properties of nanocomposites of mixed oxides of iron and chromium synthesized under different oxidative environments

被引：12

作者：

Mathur, R ^{[1
]}

Sharma, DR ^{[1
]}

Vadera, SR ^{[1
]}

Kumar, N ^{[1
]}

机构：

[1] Def Lab, Jodhpur 342011, Rajasthan, India

来源：

BULLETIN OF MATERIALS SCIENCE | 1999年 / 22卷 / 06期

关键词：

nanocomposites; copolymer; solid solution; oxidants; X-ray diffraction; Mossbauer spectroscopy;

D O I：

10.1007/BF02745692

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Synthesis of nanocomposites of mixed oxides of Fe and Cr in a copolymer matrix of aniline and formaldehyde at room temperature along with IR, XRD and Fe-57 Mossbauer studies on as synthesized as well as the samples on heating at different temperatures is described. The XRD and 57Fe Mossbauer studies show the formation of nanosized iron oxide particles. These studies further show the formation of nanosized particles of metal oxides and formation of solid solution of iron and chromium oxide on heating the samples at 700 degrees C. Further, the IR studies show that the polymeric backbone is strongly influenced by different reaction conditions and lead to variable magnetic character in the heated samples as shown by their Mossbauer studies.

引用

页码：991 / 997

页数：7

共 16 条

[1]

AZAROFF LOV, 1958, POWDER METHOD

[2]

Bentley F.F., 1968, INFRARED SPECTRA CHA, P103

[3] An X-ray diffraction and Mossbauer study of nanocrystalline Fe2O3-Cr2O3 solid solutions [J].