Electrochemical Synthesis of Tantalum Silicides from Chloride-Fluoride Melts

2018 ◽  
Vol 86 (14) ◽  
pp. 95-100
Author(s):  
Sergei Vladimirovich Devyatkin
Keyword(s):  
Electrochemical Synthesis ◽  
Fluoride Melts

scholarly journals Composition of outer-sphere cations as a tool for electrochemical synthesis of novel niobium compounds

2003 ◽  
Vol 39 (1-2) ◽  
pp. 223-231 ◽  
Author(s):  
V.V. Grinevitch ◽  
A.V. Arakcheeva ◽  
S.A. Kuznetsov
Keyword(s):  
Phase Composition ◽  
Electrochemical Synthesis ◽  
Alkali Metal Cation ◽  
Outer Sphere ◽  
Composition Control ◽  
Fluoride Melts ◽  
The Individual ◽  
Molten Electrolytes ◽  
Cation Nature ◽  
Niobium Compounds

The individual alkali-metal cation influence on the chemical and phase composition of electrosynthesis products has been studied in fluoride solvents with different O/Nb ratios. It was shown that the cation nature of molten electrolytes is a powerful tool to control the chemical and phase composition of the cathodic products of electrolysis in oxy-fluoride and fluoride melts. New niobium compounds were obtained by electrochemical synthesis using the outer-sphere cations composition control: tetragonal Nb6O, rhombohedral sub-oxide NbxO (x<6) and composite compounds "NbO" ?n"MeF" (Me=K, Rb, n=1, 2).

Electrochemical Synthesis of Titanium Silicides from Molten Salts

2001 ◽  
Vol 56 (11) ◽  
pp. 739-740 ◽  
Author(s):  
S. V. Devyatkin ◽  
O. I. Boiko ◽  
N. N. Uskova ◽  
G. Kaptay
Keyword(s):  
Electrochemical Synthesis ◽  
Thermodynamic Calculation ◽  
Molten Salts ◽  
Step Process ◽  
Fluoride Melts ◽  
Advanced Study ◽  
One Step ◽  
Study Institute

Abstract Presented at the NATO Advanced Study Institute, Kas, Turkey, May 4 -14, 2001. Electrochemical synthesis of titanium silicides from chloro-fluoride melts has been investigated by thermodynamic calculation, voltammetry and electrolysis. The electrochemical synthesis of four titanium silicides (TiSi2, TiSi, Ti5Si4, Ti5Si3) was to be a one-step process, the stoichiometry of the deposited silicides being correlated with the concentration of Si and Ti ions in the melt.

Electrochemical Synthesis of Binary and Ternary Refractory Compounds in the System Ti-Si-B from Chloride-Fluoride Melts

2007 ◽  
Vol 62 (9) ◽  
pp. 524-528 ◽  
Author(s):  
Sergei V. Devyatkin
Keyword(s):  
Ternary Compound ◽  
Titanium Diboride ◽  
Electrochemical Synthesis ◽  
Bulk Concentration ◽  
Ternary Compounds ◽  
Fluoride Melts ◽  
Refractory Compounds ◽  
One Step

Electrochemical synthesis of binary and ternary compounds in the system Ti-Si-B from chloridefluoride melts has been investigated by voltammetry and electrolysis. Electrochemical syntheses of titanium diboride, four titanium silicides (TiSi2, TiSi, Ti5Si4, Ti5Si3), silicon tetraboride and a new ternary compound, Ti5Si3B3, have been found to be one-step processes. The stoichiometry of the deposited compounds has been found to correlate with the bulk concentration of Ti, Si and B ions in the melt.

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