Interaction of the oxyfluoride melts of Ca, Al, Mg, Si, Ba, and Cr with refractories based on alumina and magnesia

Autor: V. T. Burtsev, G. V. Serov
Rok vydání: 2009
Předmět:
Zdroj: Russian Metallurgy (Metally). 2009:113-119
ISSN: 1555-6255
0036-0295
DOI: 10.1134/s0036029509020049
Popis: The interaction of slags consisting of the oxides and fluorides of Ca, Al, Mg, Si, Ba, and Cr with refractories based on Al2O3, MgO, and MgO · Al2O3 is experimentally studied at 1600–1700°C and pAr = 0.3 MPa. Laser emission microprobe analysis is used to study the fracture surfaces in the slag-crucible contact zone, to analyze the depth profile of the chromium concentration in the bulk of the refractory material, and to determine the diffusion coefficient of chromium. The values of the diffusion coefficient are related to the slag melt composition. These relations are established using the optical basicity of the slag.
Databáze: OpenAIRE