The Structure of Fusion-Cast High-Chrome Oxide Refractories in the Cr2O3 - MgO - Al2O3 System |
| |
Authors: | V. A. Sokolov T. Ya. Malysheva |
| |
Affiliation: | (1) Moscow Institute for Steel and Alloys, Moscow, Russia |
| |
Abstract: | The phase composition and structure of fusion-cast refractories composed of 57.0 – 84.2% Cr2O3, 4.3 – 36.1% MgO, 2.0 – 9.7% Al2O3, and 2.4 – 6.9% SiO2 have been studied by petrographic and x-ray spectral microprobe analysis methods. Refractories high in MgO with modulus M = (Cr2O3 +Al2O3)/MgO = 1.64 – 3.1 are shown to consist of spinel phase Mg(Cr, Al)2O4 and silicate glass. Refractory materials (80.8 – 84.2% Cr2O3, 4.3 – 4.7% MgO, 2.0 – 9.7% Al2O3, and 2.7 – 6.9% SiO2 with M = 18.7 – 20.2) are three-phase systems composed of spinel, escolaite, and glass phase. These materials, owing to their high corrosion resistance, have promising potentiality for practical applications.__________Translated from Novye Ogneupory, No. 12, pp. 69 – 74, December, 2004. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|