CORROSION OF MGO-MGAL2O4 SPINEL REFRACTORY BRICKS BY CALCIUM ALUMINOSILICATE SLAG

Authors
GOTO K ARGENT BB LEE WE
Citation
K. Goto et al., CORROSION OF MGO-MGAL2O4 SPINEL REFRACTORY BRICKS BY CALCIUM ALUMINOSILICATE SLAG, Journal of the American Ceramic Society, 80(2), 1997, pp. 461-471
Citations number
30
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the American Ceramic Society → ACNP
ISSN journal
00027820
Volume
80
Issue
2
Year of publication
1997
Pages
461 - 471
Database
ISI
SICI code
0002-7820(1997)80:2<461:COMSRB>2.0.ZU;2-0
Abstract
Microstructural analysis of MgO-MgAl2O4 refractory bricks corroded at 1400-1450 degrees C by calcium aluminosilicate slag reveals secondary spinel, monticellite, merwinite, and MgO as microscopic corrosion prod ucts, generally forming in this sequence as the brick is penetrated. T he secondary spinel forms an incomplete layer close to (but not at) th e MgO grain. Thermodynamic calculations are used to support a detailed model of the corrosion mechanism.