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Effect of Fe on Sintering of Al2O3-MgO-Fe2O3 Spinel

Published online by Cambridge University Press:  15 February 2011

O.V. Kharissova ,
J.A. Aguilar  and
U. Ortiz
O.V. Kharissova
Affiliation:
UANL, Facultad de Ingenieria Mecánica y Eléctrica, Ap. Postal 076“F”, San Nicolás de los Garza, N.L. CP. 66450, México
J.A. Aguilar
Affiliation:
UANL, Facultad de Ingenieria Mecánica y Eléctrica, Ap. Postal 076“F”, San Nicolás de los Garza, N.L. CP. 66450, México
U. Ortiz
Affiliation:
UANL, Facultad de Ingenieria Mecánica y Eléctrica, Ap. Postal 076“F”, San Nicolás de los Garza, N.L. CP. 66450, México
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Abstract

The influence of Fe on the microstructure of Al2O3-MgO-Fe2O3 spinel is described in this work. Heating a mixture of initial oxides in an electric furnace at 1400°C for 15 hrs produced the spinel. A ternary diagram for concentration ranges: Al2O3 (5-75 mol%), MgO (10-80 mol%), and Fe2O3 (3-70 mol%) summarize the constitution of this spinel. Amount, composition and weight ratios of each phase were determined by X-rays powder diffraction.

Microstructure of specimens was characterized by scanning electronic microscopy and Xray spectrometry. Distribution, size, shape of phases and pores were examined. Hardness measurements of spinel completed this study.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 580: Symposium E – Nucleation & Growth Processes in Materials , 1999 , 105
Copyright
Copyright © Materials Research Society 2000

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References

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