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Ceramica  1999 

Evolution of an alumina-magnesia/self-forming spinel castable. Part II: physico-chemical and mechanical properties

DOI: 10.1590/S0366-69131999000500007

Keywords: refractories, magnesium aluminate, spinel, castable, alumina-magnesia, refractory lining, mgal2o4, mgo-al2o3.

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Abstract:

this study was carried out in conjunction with the investigation, reported in part i, on the microstructural characteristics of an alumina-spinel castable with several percentages of mgo content. bulk density and cold crushing strength of samples were evaluated dried and at three fired states (1000, 1200, 1400 °c). results indicate little influence of mgo additions on physico-chemical properties of the alumina-magnesia/self-forming spinel castable. characteristics compared with those reported for conventional alumina-spinel castables did not show large difference in values. therefore, the alumina-magnesia/self-forming spinel castable could be a possible material for substitution of the conventional alumina-spinel castable.

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