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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Publicou 4 edições por ano

ISSN Imprimir: 1093-3611

ISSN On-line: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

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Chemical and Electrochemical Behaviour of Titanium Oxide and Complexes in Cryolite-Alumina Melts

Volume 2, Edição 4, 1998, pp. 497-506
DOI: 10.1615/HighTempMatProc.v2.i4.50
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RESUMO

In the present paper the possibility of in-situ production of aluminium-titanium alloys in aluminium electrolysis cells is discussed. Thermodynamic calculations showed, that TiO2 is reduced to lower titanium oxides both by carbon anode and aluminium cathode, leading to the passivation of both the electrode surfaces. CaTi03 was found to be the best form to introduce TiO2 into the melt, preventing passivation of electrodes. Linear voltammetry experiments proved, that in cryolite-alumina melt with TiO2 addition the process is taking place in 2 steps: Ti(IV)+ e → Ti(III) + 3e→ Ti(0), while with addition of MgTi03 or CaTi03 deposition of Ti takes place in one irreversible step: Ti(IV) + 4e → Ti(0). Finally CaTi03 dissolved in the cryolite-alumina melts is suggested to be the best candidate to produce aluminium-titanium alloys from the aluminium electrolysis cells.

CITADO POR
  1. Jentoftsen Trond E., Lorentsen Odd-Arne, Dewing Ernest W., Haarberg Geir M., Thonstad Jomar, Solubility of some transition metal oxides in cryolite-alumina melts: Part II. Solubility of TiO2, Metallurgical and Materials Transactions B, 33, 6, 2002. Crossref

  2. Haarberg Geir Martin, Electrochemical Behaviour of Dissolved Titanium Oxides during Aluminium Deposition from Molten Fluoride Electrolytes, MATERIALS TRANSACTIONS, 58, 3, 2017. Crossref

  3. Awayssa Omar, Saevarsdottir Gudrun, Meirbekova Rauan, Haarberg Geir Martin, Electrodeposition of aluminium-titanium alloys from molten fluoride-oxide electrolytes, Electrochemistry Communications, 123, 2021. Crossref

  4. Leosson Kristjan, Padamata Sai Krishna, Meirbekova Rauan, Saevarsdottir Gudrun, Gudmundsson Sveinn Hinrik, Analysis of dissolved titanium concentration and phase transformation in molten Al Ti alloy using laser-induced breakdown spectroscopy, Spectrochimica Acta Part B: Atomic Spectroscopy, 190, 2022. Crossref

  5. Haarberg Geir Martin, Awayssa Omar, Saevarsdottir Gudrun, Meirbekova Rauan, Xu Wenting, Direct Production of Aluminum Titanium Alloys in Aluminum Reduction Cells: A Laboratory Test, in Light Metals 2022, 2022. Crossref

  6. Reddy Ramana G., Shinde Pravin S., Liu Aimin, Review—The Emerging Technologies for Producing Low-Cost Titanium, Journal of The Electrochemical Society, 168, 4, 2021. Crossref

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