Exploring the Composition and Structure of Triclinic SFCA-I

The synthesis and characterisation of SFCA-I compounds has been performed. SFCA-I is one of the key bonding phases in iron ore sinter, influencing physical properties such as strength, reducibility, and strength degradation during reduction. The results reported herein extend the understanding of th...

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Bibliographic Details
Published inISIJ International Vol. 62; no. 8; pp. 1618 - 1623
Main Authors Webster, Nathan A. S., Pownceby, Mark I., Wilson, Nicholas C.
Format Journal Article
LanguageEnglish
Published The Iron and Steel Institute of Japan 15.08.2022
Subjects
FeO content
iron ore sinter
SFCA-I
unit cell volume
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Summary:The synthesis and characterisation of SFCA-I compounds has been performed. SFCA-I is one of the key bonding phases in iron ore sinter, influencing physical properties such as strength, reducibility, and strength degradation during reduction. The results reported herein extend the understanding of the solid solution limits of the SFCA-I phase, with the synthesis of single-phase SFCA-I materials containing 2.71, 3.23 and 3.73 mass% Al2O3. These materials contain less Al2O3 than any previously reported SFCA-I compounds. The results also confirm the low tolerance of the SFCA-I structure for SiO2, and a low tolerance for the variation of the CaO concentration. Finally, the results confirm that the SFCA-I structure accommodates more FeO than the related sinter phase SFCA.
ISSN:0915-1559
1347-5460
DOI:10.2355/isijinternational.ISIJINT-2021-577