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Erschienen in:

2018 | OriginalPaper | Buchkapitel

Electrochemical Preparation of Ti₅Si₃/TiC Composite from Titanium-Rich Slag in Molten CaCl₂

verfasst von : Shangshu Li, Xingli Zou, Xionggang Lu, Kai Zheng, Xin Li, Yinshuai Wang

Erschienen in: 9th International Symposium on High-Temperature Metallurgical Processing

Verlag: Springer International Publishing

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Abstract

Ti₅Si₃/TiC composite has been successfully prepared from the titanium-rich slag/SiO₂/C mixtures precursors by an electrochemical process. The electrochemical production process was carried out in molten CaCl₂ salt at 1000 °C and 3.8 V. A pressed cylindrical pellet of titanium-rich slag/SiO₂/C mixtures served as a cathode, and a solid oxide oxygen-ion-conducting membrane (SOM) tube filled with carbon-saturated liquid tin acted as an anode. The phase transformation of the cathode pellets during electrolysis process was investigated, the microstructure of the obtained products was characterized. It is found that the reaction pathways can be divided into three main stages during the electro-reduction process. The first stage is the generation of calcium compound, the second stage is the electrochemical reduction of the compound, and the third stage is the formation of Ti₅Si₃/TiC composite. The prepared Ti₅Si₃/TiC composite exhibits homogenous and nodular particle morphology.

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Titel: Electrochemical Preparation of Ti5Si3/TiC Composite from Titanium-Rich Slag in Molten CaCl2
verfasst von: Shangshu Li
Xingli Zou
Xionggang Lu
Kai Zheng
Xin Li
Yinshuai Wang
Verlag: Springer International Publishing
Buch: 9th International Symposium on High-Temperature Metallurgical Processing
Print ISBN: 978-3-319-72137-8

Electronic ISBN: 978-3-319-72138-5

Copyright-Jahr: 2018
DOI: https://doi.org/10.1007/978-3-319-72138-5_50

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