Characterization of Multi Component Calcium-ferrites in Iron Ore Sinter by EBSD Method
Multi component calcium-ferrites (CFs) including in iron ore sinter are key component of sinter properties, such as strength and reducibility. Those in a sinter are crystallized from oxide melts and form various morphologies such as columnar, needle, and fine textures depending on the formation proc...
Saved in:
| Published in | Tetsu to hagane Vol. 111; no. 12; pp. 663 - 670 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Japanese |
| Published |
The Iron and Steel Institute of Japan
15.08.2025
一般社団法人 日本鉄鋼協会 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0021-1575 1883-2954 1883-2954 |
| DOI | 10.2355/tetsutohagane.TETSU-2024-149 |
Cover
| Abstract | Multi component calcium-ferrites (CFs) including in iron ore sinter are key component of sinter properties, such as strength and reducibility. Those in a sinter are crystallized from oxide melts and form various morphologies such as columnar, needle, and fine textures depending on the formation process. Ca2(Fe,Ca)6(Fe,Al,Si)6O20 (SFCA), Ca3(Ca,Fe)(Fe,Al)16O28 (SFCA-I) and SFCA-III phases are representative multicomponent CFs, which are included in a sinter. Those texture and types of the crystal structure are not matched one by one. Since their compositional ranges and chemical properties have not yet been fully clarified, and they have micron ordered grain size, it is difficult to determine CF phases only by EPMA chemical composition analysis. In this study, phase determination of CFs in sinter was conducted by Electron backscatter diffraction (EBSD) analysis, which has better spatial resolution than Electron Probe Micro Analyzer (EPMA). Needle like CFs in the sinter with size of several microns were analyzed and confirmed presence of SFCA, SFCA-I and SFCA-III with the needle like texture. Crystal grains determined as SFCA showed higher Si content compared to those of SFCA-I, and this result is consistent with phase diagram. Mg concentration of SFCA-III found in sinter was in the range of 0.6–2.6mass%, which was lower than that of previously reported single crystal structure analysis sample. |
|---|---|
| AbstractList | Multi component calcium-ferrites (CFs) including in iron ore sinter are key component of sinter properties, such as strength and reducibility. Those in a sinter are crystallized from oxide melts and form various morphologies such as columnar, needle, and fine textures depending on the formation process. Ca2(Fe,Ca)6(Fe,Al,Si)6O20 (SFCA), Ca3(Ca,Fe)(Fe,Al)16O28 (SFCA-I) and SFCA-III phases are representative multicomponent CFs, which are included in a sinter. Those texture and types of the crystal structure are not matched one by one. Since their compositional ranges and chemical properties have not yet been fully clarified, and they have micron ordered grain size, it is difficult to determine CF phases only by EPMA chemical composition analysis. In this study, phase determination of CFs in sinter was conducted by Electron backscatter diffraction (EBSD) analysis, which has better spatial resolution than Electron Probe Micro Analyzer (EPMA). Needle like CFs in the sinter with size of several microns were analyzed and confirmed presence of SFCA, SFCA-I and SFCA-III with the needle like texture. Crystal grains determined as SFCA showed higher Si content compared to those of SFCA-I, and this result is consistent with phase diagram. Mg concentration of SFCA-III found in sinter was in the range of 0.6–2.6mass%, which was lower than that of previously reported single crystal structure analysis sample. Multi component calcium-ferrites (CFs) including in iron ore sinter are key component of sinter properties, such as strength and reducibility. Those in a sinter are crystallized from oxide melts and form various morphologies such as columnar, needle, and fine textures depending on the formation process. Ca2(Fe,Ca)6(Fe,Al,Si)6O20 (SFCA), Ca3(Ca,Fe)(Fe,Al)16O28 (SFCA-I) and SFCA-III phases are representative multicomponent CFs, which are included in a sinter. Those texture and types of the crystal structure are not matched one by one. Since their compositional ranges and chemical properties have not yet been fully clarified, and they have micron ordered grain size, it is difficult to determine CF phases only by EPMA chemical composition analysis. In this study, phase determination of CFs in sinter was conducted by Electron backscatter diffraction (EBSD) analysis, which has better spatial resolution than Electron Probe Micro Analyzer (EPMA). Needle like CFs in the sinter with size of several microns were analyzed and confirmed presence of SFCA, SFCA-I and SFCA-III with the needle like texture. Crystal grains determined as SFCA showed higher Si content compared to those of SFCA-I, and this result is consistent with phase diagram. Mg concentration of SFCA-III found in sinter was in the range of 0.6－2.6mass%, which was lower than that of previously reported single crystal structure analysis sample. Multi component calcium-ferrites (CFs) including in iron ore sinter are key component of sinter properties, such as strength and reducibility. Those in a sinter are crystallized from oxide melts and form various morphologies such as columnar, needle, and fine textures depending on the formation process. Ca2(Fe,Ca)6(Fe,Al,Si)6O20 (SFCA), Ca3(Ca,Fe)(Fe,Al)16O28 (SFCA-I) and SFCA-III phases are representative multicomponent CFs, which are included in a sinter. Those texture and types of the crystal structure are not matched one by one. Since their compositional ranges and chemical properties have not yet been fully clarified, and they have micron ordered grain size, it is difficult to determine CF phases only by EPMA chemical composition analysis. In this study, phase determination of CFs in sinter was conducted by Electron backscatter diffraction (EBSD) analysis, which has better spatial resolution than Electron Probe Micro Analyzer (EPMA). Needle like CFs in the sinter with size of several microns were analyzed and confirmed presence of SFCA, SFCA-I and SFCA-III with the needle like texture. Crystal grains determined as SFCA showed higher Si content compared to those of SFCA-I, and this result is consistent with phase diagram. Mg concentration of SFCA-III found in sinter was in the range of 0.6－2.6mass%, which was lower than that of previously reported single crystal structure analysis sample. |
| ArticleNumber | TETSU-2024-149 |
| Author | Reiko Murao |
| Author_FL | 村尾 玲子 |
| Author_FL_xml | – sequence: 1 fullname: 村尾 玲子 |
| Author_xml | – sequence: 1 givenname: Reiko orcidid: 0009-0006-7564-0098 surname: Murao fullname: Murao, Reiko |
| BackLink | https://cir.nii.ac.jp/crid/1390303254956827008$$DView record in CiNii |
| BookMark | eNqFkU1rGzEQhkVIIG6S_6BDrpvq07sL7aHdOmkgIQc7uYpZeWSrrLVGKxPcX1_ZLqbuJSBmGJhH78w7n8h56AMScsvZnZBaf06Yhk3ql7CAgHezyWz6WggmVMFVfUZGvKpkIWqtzsmIMcELrkt9SW6Gwbe5VpUspRiRt2YJEWzC6H9D8n2gvaPPmy552vSrdZYMiTbQWb9ZFQ5j9AkH6gN9jLn3JSKd-pBp2m7p5Pv0B33GtOzn1-TCQTfgzd98RV7vJ7PmZ_H08vDYfHsqrMhjFlxaCba0yCoQAsS4KselrRVozK-1TjsBtZ7LFqyrVevQjblUzkm0SldaXpGvh383YQ3bd-g6s45-BXFrODM7n8yJT4fK7HwyeYDMfznwNvbDENF9gO9t_he_PeDBe2P9LnJZM8mk0KrW40qUjFXyuP2vIcECjxoQk7cd_qfBOTdc7NOp3LHf5psZDPIPA2einA |
| Cites_doi | 10.2355/isijinternational.ISIJINT-2017-459 10.2355/isijinternational.ISIJINT-2023-432 10.2355/isijinternational.ISIJINT-2023-146 10.2355/isijinternational.45.560 10.3390/min9060333 10.1107/S2052520619014380 10.1127/njma/2018/0090 10.2355/isijinternational.ISIJINT-2020-180 10.2355/tetsutohagane.TETSU-2020-077 |
| ContentType | Journal Article |
| Copyright | 2025 The Iron and Steel Institute of Japan |
| Copyright_xml | – notice: 2025 The Iron and Steel Institute of Japan |
| DBID | RYH AAYXX CITATION ADTOC UNPAY |
| DOI | 10.2355/tetsutohagane.TETSU-2024-149 |
| DatabaseName | CiNii Complete CrossRef Unpaywall for CDI: Periodical Content Unpaywall |
| DatabaseTitle | CrossRef |
| DatabaseTitleList | |
| Database_xml | – sequence: 1 dbid: UNPAY name: Unpaywall url: https://proxy.k.utb.cz/login?url=https://unpaywall.org/ sourceTypes: Open Access Repository |
| DeliveryMethod | fulltext_linktorsrc |
| Discipline | Engineering |
| DocumentTitleAlternate | EBSD法による焼結鉱中多成分カルシウムフェライトの相同定 |
| DocumentTitle_FL | EBSD法による焼結鉱中多成分カルシウムフェライトの相同定 |
| EISSN | 1883-2954 |
| EndPage | 670 |
| ExternalDocumentID | 10.2355/tetsutohagane.tetsu-2024-149 10_2355_tetsutohagane_TETSU_2024_149 article_tetsutohagane_111_12_111_TETSU_2024_149_article_char_en |
| GroupedDBID | 2WC ALMA_UNASSIGNED_HOLDINGS GROUPED_DOAJ JSF OK1 RJT KQ8 RYH AAYXX CITATION ADTOC UNPAY |
| ID | FETCH-LOGICAL-c2149-13c3ac7ce08a22a268767c94a5ea5ebcf5f2a95d3bacf94bfef6134ff3ec45853 |
| IEDL.DBID | UNPAY |
| ISSN | 0021-1575 1883-2954 |
| IngestDate | Sun Sep 07 11:06:19 EDT 2025 Wed Oct 01 05:32:59 EDT 2025 Thu Jun 26 21:53:10 EDT 2025 Mon Sep 01 00:08:30 EDT 2025 |
| IsDoiOpenAccess | true |
| IsOpenAccess | true |
| IsPeerReviewed | true |
| IsScholarly | true |
| Issue | 12 |
| Language | Japanese |
| License | https://creativecommons.org/licenses/by-nc-nd/4.0 |
| LinkModel | DirectLink |
| MergedId | FETCHMERGED-LOGICAL-c2149-13c3ac7ce08a22a268767c94a5ea5ebcf5f2a95d3bacf94bfef6134ff3ec45853 |
| ORCID | 0009-0006-7564-0098 |
| OpenAccessLink | https://proxy.k.utb.cz/login?url=https://doi.org/10.2355/tetsutohagane.tetsu-2024-149 |
| PageCount | 8 |
| ParticipantIDs | unpaywall_primary_10_2355_tetsutohagane_tetsu_2024_149 crossref_primary_10_2355_tetsutohagane_TETSU_2024_149 nii_cinii_1390303254956827008 jstage_primary_article_tetsutohagane_111_12_111_TETSU_2024_149_article_char_en |
| ProviderPackageCode | CITATION AAYXX |
| PublicationCentury | 2000 |
| PublicationDate | 2025/08/15 |
| PublicationDateYYYYMMDD | 2025-08-15 |
| PublicationDate_xml | – month: 08 year: 2025 text: 2025/08/15 day: 15 |
| PublicationDecade | 2020 |
| PublicationTitle | Tetsu to hagane |
| PublicationTitleAlternate | Tetsu-to-Hagane |
| PublicationTitle_FL | Journal of the Iron and Steel Institute of Japan 鉄と鋼 Tetsu-to-Hagane |
| PublicationYear | 2025 |
| Publisher | The Iron and Steel Institute of Japan 一般社団法人 日本鉄鋼協会 |
| Publisher_xml | – name: The Iron and Steel Institute of Japan – name: 一般社団法人 日本鉄鋼協会 |
| References | 4) K.Sugiyama, A.Monkawa and T.Sugiyama: ISIJ Int., 45(2005), 560. https://doi.org/10.2355/isijinternational.45.560 6) D.Maruoka, S.Mataoka, T.Murakami and E.Kasai: 8th International Congress on Science and Technology of Ironmaking (ICSTI 2018), (Vienna), The Austrian Society of Metallurgy and Materials, Leoben, (2018), 71. 2) V.Kahlenberg, H.Krüger and V.S.Goettgens: Acta Crystallogr. B, 75(2019), 1126. https://doi.org/doi:10.1107/S2052520619014380 1) T.Inazumi: Iron Ore Sinter -Review of Steps Taken to Overcome the Challenges Posed Japan's Lack of Iron Ore Resources-, ISIJ, Tokyo, (2000), 213 (in Japanese). 8) T.Honeyands, J.Manuel, L.Matthews, D.O’Dea, D.Pinson, J.Leedham, G.Zhang, H.Li, B.Monaghan, X.Liu, E.Donskoi, N.A.S.Webster and M.I.Pownceby: Minerals, 9(2019), 333. https://doi.org/10.3390/min9060333 3) W.G.Mumme and R.W.Gable: Neues Jahrb. Mineral. Abh., 195(2018), 89. https://doi.org/10.1127/njma/2018/0090 10) R.Murao, T.Harano, M.Kimura and I.-H.Jung: ISIJ Int., 58(2018), 259. https://doi.org/10.2355/isijinternational.ISIJINT-2017-459 5) N.A.S.Webster and M.I.Pownceby: ISIJ Int., 64(2024), 803. https://doi.org/10.2355/isijinternational.ISIJINT-2023-432 7) R.Murao and M.Kimura: Tetsu-to-Hagané, 107(2021), 517 (in Japanese). https://doi.org/10.2355/tetsutohagane.TETSU-2020-077 9) K.Takehara, K.Ikeda, T.Kawano and T.Higuchi: ISIJ Int., 63(2023), 1567. https://doi.org/10.2355/isijinternational.ISIJINT-2023-146 11) T.Murakami, H.Wakabayashi, D.Maruoka and E.Kasai: ISIJ Int., 60(2020), 2678. https://doi.org/10.2355/isijinternational.ISIJINT-2020-180 12) D.Maruoka, N.Kimura, E.Kasai and T.Murakami: CAMP-ISIJ, 37(2024), 303, CD-ROM (in Japanese). 11 1 12 2 3 4 5 6 7 8 9 10 |
| References_xml | – reference: 1) T.Inazumi: Iron Ore Sinter -Review of Steps Taken to Overcome the Challenges Posed Japan's Lack of Iron Ore Resources-, ISIJ, Tokyo, (2000), 213 (in Japanese). – reference: 8) T.Honeyands, J.Manuel, L.Matthews, D.O’Dea, D.Pinson, J.Leedham, G.Zhang, H.Li, B.Monaghan, X.Liu, E.Donskoi, N.A.S.Webster and M.I.Pownceby: Minerals, 9(2019), 333. https://doi.org/10.3390/min9060333 – reference: 7) R.Murao and M.Kimura: Tetsu-to-Hagané, 107(2021), 517 (in Japanese). https://doi.org/10.2355/tetsutohagane.TETSU-2020-077 – reference: 9) K.Takehara, K.Ikeda, T.Kawano and T.Higuchi: ISIJ Int., 63(2023), 1567. https://doi.org/10.2355/isijinternational.ISIJINT-2023-146 – reference: 2) V.Kahlenberg, H.Krüger and V.S.Goettgens: Acta Crystallogr. B, 75(2019), 1126. https://doi.org/doi:10.1107/S2052520619014380 – reference: 5) N.A.S.Webster and M.I.Pownceby: ISIJ Int., 64(2024), 803. https://doi.org/10.2355/isijinternational.ISIJINT-2023-432 – reference: 12) D.Maruoka, N.Kimura, E.Kasai and T.Murakami: CAMP-ISIJ, 37(2024), 303, CD-ROM (in Japanese). – reference: 3) W.G.Mumme and R.W.Gable: Neues Jahrb. Mineral. Abh., 195(2018), 89. https://doi.org/10.1127/njma/2018/0090 – reference: 6) D.Maruoka, S.Mataoka, T.Murakami and E.Kasai: 8th International Congress on Science and Technology of Ironmaking (ICSTI 2018), (Vienna), The Austrian Society of Metallurgy and Materials, Leoben, (2018), 71. – reference: 4) K.Sugiyama, A.Monkawa and T.Sugiyama: ISIJ Int., 45(2005), 560. https://doi.org/10.2355/isijinternational.45.560 – reference: 11) T.Murakami, H.Wakabayashi, D.Maruoka and E.Kasai: ISIJ Int., 60(2020), 2678. https://doi.org/10.2355/isijinternational.ISIJINT-2020-180 – reference: 10) R.Murao, T.Harano, M.Kimura and I.-H.Jung: ISIJ Int., 58(2018), 259. https://doi.org/10.2355/isijinternational.ISIJINT-2017-459 – ident: 10 doi: 10.2355/isijinternational.ISIJINT-2017-459 – ident: 5 doi: 10.2355/isijinternational.ISIJINT-2023-432 – ident: 9 doi: 10.2355/isijinternational.ISIJINT-2023-146 – ident: 1 – ident: 4 doi: 10.2355/isijinternational.45.560 – ident: 8 doi: 10.3390/min9060333 – ident: 12 – ident: 2 doi: 10.1107/S2052520619014380 – ident: 3 doi: 10.1127/njma/2018/0090 – ident: 6 – ident: 11 doi: 10.2355/isijinternational.ISIJINT-2020-180 – ident: 7 doi: 10.2355/tetsutohagane.TETSU-2020-077 |
| SSID | ssib002483732 ssib012345451 ssib002423093 ssib002671010 ssib002499116 ssib005439716 ssib000937805 ssib023161484 ssj0066774 ssib002617313 ssib007834452 ssib002484673 ssib002670249 ssib002670248 ssib051641580 ssib002223898 ssib002671009 ssib059239678 |
| Score | 2.3652403 |
| Snippet | Multi component calcium-ferrites (CFs) including in iron ore sinter are key component of sinter properties, such as strength and reducibility. Those in a... |
| SourceID | unpaywall crossref nii jstage |
| SourceType | Open Access Repository Index Database Publisher |
| StartPage | 663 |
| SubjectTerms | calcium-ferrite EBSD iron ore sinter |
| Title | Characterization of Multi Component Calcium-ferrites in Iron Ore Sinter by EBSD Method |
| URI | https://www.jstage.jst.go.jp/article/tetsutohagane/111/12/111_TETSU-2024-149/_article/-char/en https://cir.nii.ac.jp/crid/1390303254956827008 https://doi.org/10.2355/tetsutohagane.tetsu-2024-149 |
| UnpaywallVersion | publishedVersion |
| Volume | 111 |
| hasFullText | 1 |
| inHoldings | 1 |
| isFullTextHit | |
| isPrint | |
| ispartofPNX | Tetsu-to-Hagane, 2025/08/15, Vol.111(12), pp.663-670 |
| journalDatabaseRights | – providerCode: PRVAON databaseName: DOAJ Directory of Open Access Journals customDbUrl: eissn: 1883-2954 dateEnd: 99991231 omitProxy: true ssIdentifier: ssj0066774 issn: 0021-1575 databaseCode: DOA dateStart: 20200101 isFulltext: true titleUrlDefault: https://www.doaj.org/ providerName: Directory of Open Access Journals – providerCode: PRVHPJ databaseName: ROAD: Directory of Open Access Scholarly Resources customDbUrl: eissn: 1883-2954 dateEnd: 99991231 omitProxy: true ssIdentifier: ssib051641580 issn: 0021-1575 databaseCode: M~E dateStart: 20070101 isFulltext: true titleUrlDefault: https://road.issn.org providerName: ISSN International Centre |
| link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV3dT9swED-NgjZ42NjYtG4D-YFXd8QfSfrIuiKYREFqM7GnyHZtyNalqEuE4K_nnISo5WUbUpTIks-5-Oz7iH0_A-y7OOaBjqaUcRNTIaWlamoVlc45ww9iq6VPcD4dhceJ-HYhL5qkMJ8Ls7R-z9AUfi5s8acs5lfqUuW2V5VQsExQ9OzXYD2U6IF3YD0ZnR_-qHdzBDSQFb5ugGxQv4z1HPb_pbkVy7TxE50zn3W_lmfZFrwo82t1e6NmsyXrc_QKkge-600nv3ploXvm7hGk4_9-2Da8bNxRcliPn9fwzOZvYGsJpHAHvg9aTOc6ZZPMHanydolXJvMczRYZqJnJyt_UeaBH9F5JlpOTBdY9W1gy9pgUC6JvyfDL-Cs5rQ6tfgvJ0XAyOKbNaQzUMOSJBtxwZSJjD2LFmGIh6tHI9IWSFi9tnHRM9eWUa2VcX2hnHboKwjlujcCghL-DTo48vQfCkFBE0kUitGgPLdYOnbB6aqRSIoi7IB8kkV7XoBspBiu-39KVfksnw8k4SX2_YQzT78KoFltL1Uy_R1Q-6AlY9VhtoK3vU95Qb3RhF8Wfmszf0VdGjch9RC3D2C_YI6NhOzD-wmlVal_04amEH2GT-ROIPSiv_ASdYlHaXXSLCr1X_U7Ya-bCPX4TD6I |
| linkProvider | Unpaywall |
| linkToUnpaywall | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV3dT9swED-NMm3wwL5AlMHkB17dEX8k6SOUIjaJblKbiT1FtmuPQJeikmhifz3nJEQtL_uQokSWfMnFZ_t-J_t-Bjh0ccwDHU0p4yamQkpL1dQqKp1zhh_FVkuf4HwxCs8T8flSXjZJYT4XZmn9nqEr_FjY4q4s5lfqh8ptryqhYZmgiOzXYD2UiMA7sJ6Mvh5_r3dzBDSQFb9ugGpQv4z1Ag7_5nUrnun5NYIzn3W_lmfZJrws81t1_0vNZkve5-wVJI9615tObnploXvm9xNKx3_9sdew1cBRclz3nzfwzOZvYXOJpPAdfBu0nM51yiaZO1Ll7RI_mcxzdFtkoGYmK39S54keEb2SLCefFlj3y8KSseekWBB9T4Yn41NyUR1avQ3J2XAyOKfNaQzUMNSJBtxwZSJjj2LFmGIhzqOR6QslLV7aOOmY6ssp18q4vtDOOoQKwjlujcCghO9AJ0eddoEwFBSRdJEILfpDi7VDJ6yeGqmUCOIuyEdLpLc16UaKwYpvt3Sl3dLJcDJOUt9uGMP0uzCqzdZKNcPviZQPegJWPVZf0Nb3KW84b3ThAM2fmszfESvjjMh9RC3D2C_Yo6Jh2zH-oGlVaj-097-C72GD-ROIPSmv3IdOsSjtAcKiQn9oRsEDJhIOrQ |
| openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Characterization+of+Multi+Component+Calcium-ferrites+in+Iron+Ore+Sinter+by+EBSD+Method&rft.jtitle=Tetsu-to-Hagane&rft.au=Murao+Reiko&rft.date=2025-08-15&rft.pub=The+Iron+and+Steel+Institute+of+Japan&rft.issn=0021-1575&rft.eissn=1883-2954&rft.volume=advpub&rft_id=info:doi/10.2355%2Ftetsutohagane.tetsu-2024-149 |
| thumbnail_l | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/lc.gif&issn=0021-1575&client=summon |
| thumbnail_m | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/mc.gif&issn=0021-1575&client=summon |
| thumbnail_s | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/sc.gif&issn=0021-1575&client=summon |