Morphology of Titanium Diboride Obtained by Electrochemical Synthesis from Molten Chloro-Fluoride Melt

doi:10.1615/HighTempMatProc.v3.i1.100

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Inicio > Revistas > High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes > Volumen 3, 1999 Edición 1 > Morphology of Titanium Diboride Obtained by Electrochemical Synthesis from Molten Chloro-Fluoride Melt

ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360

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

DOI: 10.1615/HighTempMatProc.v3.i1.100
pages 117-124

Morphology of Titanium Diboride Obtained by Electrochemical Synthesis from Molten Chloro-Fluoride Melt

SINOPSIS

Titanium diboride has been synthesised from NaCl-KCl-NaF-K₂TiF₆-KBF₄ molten system at 700 °C on W cathode by DC and PCR techniques in the wide range of current densities. From comparison of Equilibrium Electrochemical Synthesis (EES) diagrams and linear voltammograms the conclusion was made, that first a thin layer of W₂B will be formed, with further growth of TiB₂. Deposits were analysed by X-ray diffractometry, SEM and GDOES. These techniques confirmed the validity of theoretical predictions. Finer structure has been obtained by the PCR technique compared to the DC technique. Titanium and boron atoms were found to diffuse deep into the tungsten substrate with a constant ratio of 1:2.

PALABRAS CLAVE: Titanium diboride, electrochemical synthesis, morphology, deep profile analysis, diffusion profile.

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