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Texture and sinterability of MgO powders

Authors
Journal
Ceramurgia International
0390-5519
Publisher
Elsevier
Publication Date
Volume
1
Issue
1
Identifiers
DOI: 10.1016/0390-5519(75)90033-2

Abstract

Abstract Characterization of MgO powders obtained by thermal decomposition of spectrally-pure magnesium hydroxide, magnesium-ammonium carbonate, and magnesium oxalate at 350°–1000°C, in terms of the crystallite size, lattice microstrains, and texture. The composition of the systems was checked by X-ray diffraction and IR-spectrography. The behaviour during heating and the final microstructure of sintered ceramic bodies have been shown to be a function of the initial texture of the powders which is due to the different mechanism of decomposition of the particular starting compounds. The results, supported by parallel observations of behaviour on heating of MgO derived from a well-oriented natural brucite, agree with the analysis of the initial stages of sintering published by Pampuch and later by Exner, Petzow, and Wellner.

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