Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Material Composition and Microstructure of Ceramic Stack and Hearth of JSC EVRAZ NTMK Blast Furnace No. 6 After Service. Refractory Microstructure After Service
AU - Perepelitsyn, V.
AU - Zemlyanoi, K.
AU - Mironov, K.
AU - Forshev, A.
AU - Nikolaev, F.
AU - Sushnikov, D.
PY - 2023
Y1 - 2023
N2 - Results of a comprehensive study of the material microstructure of refractory samples after service in a blast furnace with a useful volume of 2200 m3 for 14 years are presented. Structural and genetic analysis establishes a typical sequence of degeneration and wear processes of the ceramic furnace skull, including six stages: formation of micro-and macro-cracks; condensation of zinc vapor; zinc oxidation with formation of fire-resistant ZnO zincite and deposition of carbon black; chemical interaction of zincite with mullite and corundum to form ganite ZnAl2O4 and willemite 2ZnO·SiO2; partial oxidation of silicon carbide with the release of silica glass SiO2, eutectic melt of complex composition, and willemite. Due to intense accumulation of capillary pores, infiltration of molten slag into the volume of refractories does not occur. Wear of refractories within the furnace is a complex, mainly thermochemical mechanism, and a slow rate due to formation of a garnish containing refractory compounds. © 2023, Springer Science+Business Media, LLC, part of Springer Nature.
AB - Results of a comprehensive study of the material microstructure of refractory samples after service in a blast furnace with a useful volume of 2200 m3 for 14 years are presented. Structural and genetic analysis establishes a typical sequence of degeneration and wear processes of the ceramic furnace skull, including six stages: formation of micro-and macro-cracks; condensation of zinc vapor; zinc oxidation with formation of fire-resistant ZnO zincite and deposition of carbon black; chemical interaction of zincite with mullite and corundum to form ganite ZnAl2O4 and willemite 2ZnO·SiO2; partial oxidation of silicon carbide with the release of silica glass SiO2, eutectic melt of complex composition, and willemite. Due to intense accumulation of capillary pores, infiltration of molten slag into the volume of refractories does not occur. Wear of refractories within the furnace is a complex, mainly thermochemical mechanism, and a slow rate due to formation of a garnish containing refractory compounds. © 2023, Springer Science+Business Media, LLC, part of Springer Nature.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85176418211
UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001101020800001
U2 - 10.1007/s11148-023-00793-2
DO - 10.1007/s11148-023-00793-2
M3 - Article
VL - 64
SP - 1
EP - 5
JO - Refractories and Industrial Ceramics
JF - Refractories and Industrial Ceramics
SN - 1083-4877
IS - 1
ER -
ID: 49842577