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  • 1
    Electronic Resource
    Electronic Resource
    Electrochemical properties of metal-molten salt mixtures (1989)
    Springer
    Journal of applied electrochemistry 19 (1989), S. 789-801 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Available literature on metal-molten salt mixtures is reviewed with emphasis on electrochemical properties of the dissolved metal in dilute solutions of metals in salts. Phase diagrams and solubility data are summarized, followed by a more detailed treatment of conductivities, migration studies, emf, anodic oxidation, measurements of electronic conduction, etc. Some structural models are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01007924
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Kinetics and mechanism of the magnesium electrode reaction in molten magnesium chloride (1995)
    Springer
    Journal of applied electrochemistry 25 (1995), S. 940-946 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Using electrochemical impedance spectroscopy (EIS) and relaxation method with galvanostatic perturbation (RM) the kinetics and mechanism of the magnesium electrode reaction in pure molten M9Cl2 have been determined at several temperatures. A three-step electrode process has been found, the high frequency process being pure charge transfer with the low frequency process showing mixed charge transfer-diffusion character. The low frequency step has also been treated as a preceding chemical reaction followed by charge transfer. On the basis of the corresponding exchange current densities and Warburg diffusion impedance, a mechanism of the overall electrode reaction in this melt is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00241588
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  • 3
    Electronic Resource
    Electronic Resource
    Electrodeposition of titanium from chloride melts (1993)
    Springer
    Journal of applied electrochemistry 23 (1993), S. 217-224 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The kinetics of the electrodeposition and electrocrystallisation of titanium were studied in alkali chloride melts. Voltammograms showed two distinct anodic peaks for the oxidation steps Ti/Ti(II) and Ti(II)/Ti(III) at 70 mV and 300 mV, respectively, referred to titanium. The cathodic reduction Ti(III)/Ti(II) was very irreversible, showing an extended cathodic wave and a shoulder on the Ti(II)/Ti reduction peak. The Ti(II)/Ti reduction was found to be quasi reversible. The rate constant at 450'C was ∼ 5 × 10−3 cm s−1 . The diffusion coefficient in KCl-LiCl eutectic was ∼ 1 × 10−5 cm2s−1 at 450° C rising to 3.5 × 10−5 cm2s−1 at 650° C. Potential step measurements gave curves indicating slow instantaneous nucleation and growth (I against t 1/2) followed by slow diffusion control (I against t −1/2). During constant current steady state deposition the nature of the deposit depended on the composition of the melt, the temperature and the cd. In KCl-LiCl melts coherent deposits were obtained for cds of 60–120 mA cm2 while higher current densities gave dendritic and spongy deposits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00241912
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  • 4
    Electronic Resource
    Electronic Resource
    Electrodeposition of titanium diboride from fused salts (1996)
    Springer
    Journal of applied electrochemistry 26 (1996), S. 319-324 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Electrodeposition of TiB2 has been performed in cryolite-based electrolytes at 960°C and in KF-KCl melts at 800°C. As electroactive species either boron oxide and titanium oxide or potassium tetrafluoroborate and potassium hexafluorotitanate were used. Preparation of coatings from cryolite-based electrolytes containing K2TiF6 and KBF4 was not successful. Coatings prepared from cryolite-based electrolytes containing B2O3 and TiO2 were not coherent. Owing to the relatively high temperature both types of electrolytes undergo thermal decomposition. Electrolysis in potassium fluoride-chloride electrolytes containing KBF4 and K2TiF6 provides coherent coatings with good adhesion to the substrate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00242102
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    Paper (German National Licenses)
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