Synthesis of copper spinels by microwave irradiation

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

Abstract

CuFe2O4 was synthesized by microwave irradiation and conventional processing. In addition, microwave H-field annealing was conducted in order to investigate the effect of a magnetic field on tetragonal CuFe2O4. The sample synthesized with microwave E-field irradiation was cubic CuFe2O4, had a small saturation magnetization, and the same coercivity as that produced by conventional heating. In contrast, the sample synthesized with H-field irradiation had a larger saturation magnetization and a smaller coercivity than the sample synthesized by conventional heating. After H-field annealing, the sample had a large amount of cubic CuFe2O4 phase that consists of small crystallites. Moreover, the saturation magnetization increased and the coercivity decreased. These results suggest that microwaves lead to a reduction in the Jahn-Teller distortion and the magnetic property changes accordingly. It is concluded that microwaves affect the Jahn-Teller distortion of CuFe2O4 and the effect leads to changes in the phase and magnetic properties.

Original languageEnglish
Title of host publicationProcessing and Properties of Advanced Ceramics and Composites VII
EditorsMorsi M. Mahmoud, Amar Bhalla, Narottam P. Bansal, J. P. Singh, Ricardo H. R. Castro, Navin Jose Manjooran, Gary Pickrell, Sylvia Johnson, Geoff Brennecka, Gurpreet Singh, Dongming Zhu
PublisherAmerican Ceramic Society
Pages33-41
Number of pages9
ISBN (Electronic)9781119183877
DOIs
Publication statusPublished - 2015 Jan 1
EventProcessing and Properties of Advanced Ceramics and Composites VII - Materials Science and Technology 2014 Conference, MS and T 2014 - Pittsburgh, United States
Duration: 2014 Oct 122014 Oct 16

Publication series

NameCeramic Transactions
Volume252
ISSN (Print)1042-1122

Other

OtherProcessing and Properties of Advanced Ceramics and Composites VII - Materials Science and Technology 2014 Conference, MS and T 2014
CountryUnited States
CityPittsburgh
Period14/10/1214/10/16

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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