Production and sintering of Mgo-MgFe2O4 powder ceramics by mechanical alloying

A. Huerta; H. A. Calderon; M. Umemoto

Production and sintering of Mgo-MgFe₂O₄ powder ceramics by mechanical alloying

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

Escuela Superior de Física y Matemáticas (ESFM)

Research output: Contribution to journal › Conference article › peer-review

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 (Mg_xFe_1-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 language	English
Pages (from-to)	631-636
Number of pages	6
Journal	Materials Science Forum
Volume	360-362
State	Published - 2001
Event	Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM 2000) - Oxford, United Kingdom Duration: 9 Jul 2000 → 14 Jul 2000

Keywords

Ceramic
Magnetic properties
Mechanochemical reaction
Sintering

Cite this

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title = "Production and sintering of Mgo-MgFe2O4 powder ceramics by mechanical alloying",

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 magnesiow{\"u}stite (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 magnesiow{\"u}stite matrix. Measurement of magnetic properties is used to determine both the nature of the developed phases and the grain sizes.",

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author = "A. Huerta and Calderon, {H. A.} and M. Umemoto",

year = "2001",

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volume = "360-362",

pages = "631--636",

journal = "Materials Science Forum",

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note = "Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM 2000) ; Conference date: 09-07-2000 Through 14-07-2000",

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TY - JOUR

T1 - Production and sintering of Mgo-MgFe2O4 powder ceramics by mechanical alloying

AU - Huerta, A.

AU - Calderon, H. A.

AU - Umemoto, M.

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

KW - Ceramic

KW - Magnetic properties

KW - Mechanochemical reaction

KW - Sintering

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M3 - Artículo de la conferencia

AN - SCOPUS:0035021310

SN - 0255-5476

VL - 360-362

SP - 631

EP - 636

JO - Materials Science Forum

JF - Materials Science Forum

T2 - Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM 2000)

Y2 - 9 July 2000 through 14 July 2000

ER -

Production and sintering of Mgo-MgFe₂O₄ powder ceramics by mechanical alloying

Abstract

Keywords

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