Fabrication and magnetic properties of mullite based nanocomposites with embedded FeCr alloy nanoparticles

Hao Wang, Weimin Wang, Zhengyi Fu, Tohru Sekino, Koichi Niihara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mullite-based nanocomposites with embedded FeCr alloy nanoparticles were synthesized by reduction of sol-gel prepared Al5.4(Fe 0.8Cr0.2)0.6Si2O13 solid solution in hydrogen. The feature of the formation of FeCr alloy is characterized by XRD analysis. Structural characterization revealed that the intragranular FeCr alloy nanoparticles along with inter-granular iron grains were obtained in as reduced sample. After acid washing, the intergranular metal grains were eliminated. The static magnetic properties of nanocomposite powders were studied using Magnetic Property Measurement System. It is found that part of the intra-granular metal nanoparticles have superparamagnetic behavior at room temperature.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7
PublisherTrans Tech Publications Ltd
Pages286-289
Number of pages4
ISBN (Print)0878499954, 9780878499953
DOIs
Publication statusPublished - 2006
Event7th International Symposium on Eco-Materials Processing and Design, ISEPD-7 - Chengdu, China
Duration: 2006 Jan 82006 Jan 11

Publication series

NameMaterials Science Forum
Volume510-511
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other7th International Symposium on Eco-Materials Processing and Design, ISEPD-7
CountryChina
CityChengdu
Period06/1/806/1/11

Keywords

  • FeCr
  • Magnetic property
  • Microstructure
  • Mullite
  • Nanocomposite

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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