Formation and densification behavior of MgAl2O4 spinel: The influence of processing parameters
authors Ganesh, I; Olhero, SM; Rebelo, AH; Ferreira, JMF
nationality International
journal JOURNAL OF THE AMERICAN CERAMIC SOCIETY
keywords MAGNESIUM ALUMINATE SPINEL; NANOCRYSTALLINE MGAL2O4; POWDERS
abstract Different types of dense stoichiometric and nonstoichiometric magnesium aluminate (MgAl2O4) spinel (MAS) ceramics were prepared following a conventional double-stage firing process using different commercially available alumina and magnesia raw materials. Stoichiometric, magnesia-rich, and alumina-rich spinels were sintered at 1500 degrees-1800 degrees C for 1-2.5 h. The influence of the different processing parameters (average particle size, degree of spinel phase, green density, mass of the powder compact, sintering temperature, holding time at the peak temperature, and starting composition) on the densification behavior of MAS was assessed by measuring the bulk density, apparent porosity, and water absorption capacity, and microstructural observations. Most of the MAS compositions tested exhibited excellent sintering properties.
publisher WILEY-BLACKWELL
issn 0002-7820
year published 2008
volume 91
issue 6
beginning page 1905
ending page 1911
digital object identifier (doi) 10.1111/j.1551-2916.2008.02355.x
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000256410700023
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journal analysis (jcr 2019):
journal impact factor 3.502
5 year journal impact factor 3.475
category normalized journal impact factor percentile 91.071
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