Production and sintering of Mgo-MgFe<inf>2</inf>O<inf>4</inf> powder ceramics by mechanical alloying

A. Huerta, H. A. Calderon, M. Umemoto

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

2 Scopus citations

Abstract

Ceramic materials consisting of magnetic particles (MgFe2O4) in an insulating matrix (MgO) with a nanocrystalline structure have been produced by mechanical alloying and sintering techniques. Initial mixtures of MgO and Fe2O3 were milled in high-energy mills and characterized after different milling times. Increasing amounts of magnesiowüstite (MgxFe1-xO) form as a function of milling time. Sintering was performed from 673 to 1273 K in vacuum. Sintering at low temperatures allows retention of nanosized grains containing a fine dispersion of magnetic particles in a magnesiowüstite matrix. Measurement of magnetic properties is used to determine both the nature of the developed phases and the grain sizes.
Original languageAmerican English
Title of host publicationProduction and sintering of Mgo-MgFe2O4 powder ceramics by mechanical alloying
Pages631-636
Number of pages567
StatePublished - 29 May 2001
EventMaterials Science Forum -
Duration: 1 Dec 2006 → …

Publication series

NameMaterials Science Forum
Volume360-362
ISSN (Print)0255-5476

Conference

ConferenceMaterials Science Forum
Period1/12/06 → …

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Huerta, A., Calderon, H. A., & Umemoto, M. (2001). Production and sintering of Mgo-MgFe<inf>2</inf>O<inf>4</inf> powder ceramics by mechanical alloying. In Production and sintering of Mgo-MgFe2O4 powder ceramics by mechanical alloying (pp. 631-636). (Materials Science Forum; Vol. 360-362).