Skip to main content
Top

2018 | OriginalPaper | Chapter

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

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

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

Publisher: Springer International Publishing

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

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.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Literature
1.
go back to reference Wang L, Jiang W, Qin C, Chen L (2006) In-situ synthesized Ti5Si3/TiC composites by spark plasma sintering technology. J Mater Sci 41:3831–3835CrossRef Wang L, Jiang W, Qin C, Chen L (2006) In-situ synthesized Ti5Si3/TiC composites by spark plasma sintering technology. J Mater Sci 41:3831–3835CrossRef
2.
go back to reference Li J, Jiang D, Tan S (2002) Microstructure and mechanical properties of in situ produced Ti5Si3/TiC nanocomposites. J Eur Ceram Soc 4:551–558CrossRef Li J, Jiang D, Tan S (2002) Microstructure and mechanical properties of in situ produced Ti5Si3/TiC nanocomposites. J Eur Ceram Soc 4:551–558CrossRef
3.
go back to reference Miyano N, Iwasa H, Matsumoto M, Ameyama K, Sugiyama S (2005) Micro-Structures of TiC/Ti5Si3 composite produced by powder metallurgy and LIGA process. Microsyst Technol 11:374–378CrossRef Miyano N, Iwasa H, Matsumoto M, Ameyama K, Sugiyama S (2005) Micro-Structures of TiC/Ti5Si3 composite produced by powder metallurgy and LIGA process. Microsyst Technol 11:374–378CrossRef
4.
go back to reference Wang L, Jiang W, Chen L, Bai G (2011) Microstructure of Ti5Si3–TiC–Ti3SiC2 and Ti5Si3–TiC nanocomposites in situ synthesized by spark plasma sintering. J Mater Res 19:3004–3008CrossRef Wang L, Jiang W, Chen L, Bai G (2011) Microstructure of Ti5Si3–TiC–Ti3SiC2 and Ti5Si3–TiC nanocomposites in situ synthesized by spark plasma sintering. J Mater Res 19:3004–3008CrossRef
5.
go back to reference Zou X, Lu X, Li C, Zhou Z (2010) A direct electrochemical route from oxides to Ti–Si intermetallics. Electrochim Acta 55:5173–5179CrossRef Zou X, Lu X, Li C, Zhou Z (2010) A direct electrochemical route from oxides to Ti–Si intermetallics. Electrochim Acta 55:5173–5179CrossRef
6.
go back to reference Krishnan A, Lu XG, Pal UB (2005) Solid Oxide Membrane (SOM) technology for environmentally sound production of tantalum metal and alloys from their oxide sources. Scand J Metall 34:293–301CrossRef Krishnan A, Lu XG, Pal UB (2005) Solid Oxide Membrane (SOM) technology for environmentally sound production of tantalum metal and alloys from their oxide sources. Scand J Metall 34:293–301CrossRef
7.
go back to reference Zou X, Lu X, Zhou Z, Li C, Ding W (2011) Direct selective extraction of titanium silicide Ti5Si3 from multi-component Ti-bearing compounds in molten salt by an electrochemical process. Electrochim Acta 56:8430–8437CrossRef Zou X, Lu X, Zhou Z, Li C, Ding W (2011) Direct selective extraction of titanium silicide Ti5Si3 from multi-component Ti-bearing compounds in molten salt by an electrochemical process. Electrochim Acta 56:8430–8437CrossRef
8.
go back to reference Zou X, Lu X, Zhou Z, Xiao W, Zhong Q, Li C, Ding W (2014) Electrochemical extraction of Ti5Si3 silicide from multicomponent Ti/Si-containing metal oxide compounds in molten salt. J Mater Chem A 2:7421CrossRef Zou X, Lu X, Zhou Z, Xiao W, Zhong Q, Li C, Ding W (2014) Electrochemical extraction of Ti5Si3 silicide from multicomponent Ti/Si-containing metal oxide compounds in molten salt. J Mater Chem A 2:7421CrossRef
9.
go back to reference Lu X, Zou X, Li C, Zhong Q, Ding W, Zhou Z (2012) Green electrochemical process solid-oxide oxygen-ion-conducting membrane (SOM): Direct extraction of Ti-Fe alloys from natural ilmenite. Metall Mater Trans B 43:503–512CrossRef Lu X, Zou X, Li C, Zhong Q, Ding W, Zhou Z (2012) Green electrochemical process solid-oxide oxygen-ion-conducting membrane (SOM): Direct extraction of Ti-Fe alloys from natural ilmenite. Metall Mater Trans B 43:503–512CrossRef
10.
go back to reference Martin A, Lambertin D, Poignet J-C, Allibert M, Bourges G, Pescayre L, Fouletier J (2003) The electrochemical deoxidation of metal oxides by calcium using a solid oxide membrane. JOM 55:52–54CrossRef Martin A, Lambertin D, Poignet J-C, Allibert M, Bourges G, Pescayre L, Fouletier J (2003) The electrochemical deoxidation of metal oxides by calcium using a solid oxide membrane. JOM 55:52–54CrossRef
11.
go back to reference Krishnan A, Pal UB, Lu XG (2005) Solid oxide membrane process for magnesium production directly from magnesium oxide. Metall Mater Trans B 36:463–473CrossRef Krishnan A, Pal UB, Lu XG (2005) Solid oxide membrane process for magnesium production directly from magnesium oxide. Metall Mater Trans B 36:463–473CrossRef
12.
go back to reference Deng Y, Wang D, Xiao W, Jin X, Hu X, Chen GZ (2005) Electrochemistry at conductor/insulator/electrolyte three-phase interlines: a thin layer model. J Phys Chem B 109:14043–14051CrossRef Deng Y, Wang D, Xiao W, Jin X, Hu X, Chen GZ (2005) Electrochemistry at conductor/insulator/electrolyte three-phase interlines: a thin layer model. J Phys Chem B 109:14043–14051CrossRef
13.
go back to reference Xiao W, Jin X, Deng Y, Wang D, Hu X, Chen GZ (2006) Electrochemically driven three-phase interlines into insulator compounds: electroreduction of solid SiO2 in molten CaCl2. Chemphyschem 7:1750–1758CrossRef Xiao W, Jin X, Deng Y, Wang D, Hu X, Chen GZ (2006) Electrochemically driven three-phase interlines into insulator compounds: electroreduction of solid SiO2 in molten CaCl2. Chemphyschem 7:1750–1758CrossRef
14.
go back to reference Ma M, Wang D, Wang W, Hu X, Jin X, Chen GZ (2006) Extraction of titanium from different titania precursors by the FFC Cambridge process. J Alloy Compd 420:37–45CrossRef Ma M, Wang D, Wang W, Hu X, Jin X, Chen GZ (2006) Extraction of titanium from different titania precursors by the FFC Cambridge process. J Alloy Compd 420:37–45CrossRef
15.
go back to reference Sun L, Song Q, Xu Q, Ning Z, Lu X, Fray D (2015) The electrochemical synthesis of TiC reinforced Fe based composite powder from titanium-rich slag. New J Chem 39:4391–4397CrossRef Sun L, Song Q, Xu Q, Ning Z, Lu X, Fray D (2015) The electrochemical synthesis of TiC reinforced Fe based composite powder from titanium-rich slag. New J Chem 39:4391–4397CrossRef
16.
go back to reference Schwandt C, Fray DJ (2005) Determination of the kinetic pathway in the electrochemical reduction of titanium dioxide in molten calcium chloride. Electrochim Acta 51:66–76CrossRef Schwandt C, Fray DJ (2005) Determination of the kinetic pathway in the electrochemical reduction of titanium dioxide in molten calcium chloride. Electrochim Acta 51:66–76CrossRef
17.
go back to reference Bhagat R, Dye D, Raghunathan SL, Talling RJ, Inman D, Jackson BK, Rao KK, Dashwood RJ (2010) In situ synchrotron diffraction of the electrochemical reduction pathway of TiO2. Acta Mater 58:5057–5062CrossRef Bhagat R, Dye D, Raghunathan SL, Talling RJ, Inman D, Jackson BK, Rao KK, Dashwood RJ (2010) In situ synchrotron diffraction of the electrochemical reduction pathway of TiO2. Acta Mater 58:5057–5062CrossRef
18.
go back to reference Mohanty J, Mishra KG, Paramguru RK, Mishra BK (2011) Formation of calcium titanate during electroreduction of TiO2 in molten CaCl2 bath. Metall Mater Trans B 43:513–518CrossRef Mohanty J, Mishra KG, Paramguru RK, Mishra BK (2011) Formation of calcium titanate during electroreduction of TiO2 in molten CaCl2 bath. Metall Mater Trans B 43:513–518CrossRef
19.
go back to reference Du YJ, Rao KP, Chung JCY, Han XD (2000) Phase transitions in reactive formation of Ti5Si3/TiAl in situ composites. Matall Mater Trans A 31A Du YJ, Rao KP, Chung JCY, Han XD (2000) Phase transitions in reactive formation of Ti5Si3/TiAl in situ composites. Matall Mater Trans A 31A
20.
go back to reference Chen K, Hua Y, Xu C, Zhang Q, Qi C, Jie Y (2015) Preparation of TiC/SiC composites from Ti-enriched slag by an electrochemical process in molten salts. Ceram Int 41:11428–11435CrossRef Chen K, Hua Y, Xu C, Zhang Q, Qi C, Jie Y (2015) Preparation of TiC/SiC composites from Ti-enriched slag by an electrochemical process in molten salts. Ceram Int 41:11428–11435CrossRef
Metadata
Title
Electrochemical Preparation of Ti5Si3/TiC Composite from Titanium-Rich Slag in Molten CaCl2
Authors
Shangshu Li
Xingli Zou
Xionggang Lu
Kai Zheng
Xin Li
Yinshuai Wang
Copyright Year
2018
DOI
https://doi.org/10.1007/978-3-319-72138-5_50

Premium Partners