| Autor: |
Kipiani, G., Gasviani, N., Khustishvili, M., Andguladze Sh., Abazadze, L., Skhiladze, N., Chachua, G. |
| Rok vydání: |
2022 |
| Předmět: |
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| DOI: |
10.5281/zenodo.6616002 |
| Popis: |
Tantalum coatings on copper substrates have been obtained by the method of galvanostatic electrolysis from chloride-fluoride melt KCL-KF-K2TaF7 (10wt%) containing 4 wt. % Ta2O5, at a temperature of 7500C. The optimal parameters of the reversing mode of electrolysis, allowing obtaining tantalum coatings with improved mechanical properties, are determined. To calculate the reliable operation resource for the obtained samples of different thicknesses, under conditions of strong mechanical and thermal effects of various types. The influence of the pre-heat treatment temperature on the electrical properties of the coating, as well as the temperature dependence on the electrical (specific resistance) and mechanical (Young's modulus E and internal friction Q-1 ) parameters under shock heating (950-1000) 0С of the samples, have been studied. It has been established that an increase in the cathode current density in the reversing polarization mode provides uniform, non-porous, shiny deposits. On the basis of the conducted studies, it can be concluded that the obtained tantalum coatings after heat treatment (950-1000)0C retain their electrical and mechanical properties. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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