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Publikācija: Dense Titanium Oxide Ceramics for Water Preparation with Electrolysis

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Nosaukums oriģinālvalodā Dense Titanium Oxide Ceramics for Water Preparation with Electrolysis
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.4. Ķīmijas inženierzinātne
Autori Madars Reimanis
Agnese Pūra
Jānis Ločs
Indulis Freimanis
Līga Bērziņa-Cimdiņa
Jurijs Ozoliņš
Atslēgas vārdi extrusion; titanium oxide; electrolysis; microstructure; ceramics
Anotācija The efficiency of electrolytic process is affected by the type of electrodes. Titanium oxide-based ceramic electrode with the common formula TinO2n-1, where n is a number from 4 to 10 has a high resistance to corrosion, low absorption coefficient and and appear to be potentially applicable. The extrusion mass preparation technology to obtain dense and qualitative titanium oxide ceramic sample for drinking water preparation with electrolysis has been investigated. Additives used to prepare extrusion mass were: water, plasticizer and binding agent. Microstructure of obtained samples was investigated using scanning electron microscopy. Green density of cylindrical samples after extrusion was in range from 52.4 to 53.4 % of theoretical density. Extruded samples were calcinated at 1100 °C and sintered at 1450 °C, and afterwards treated in vacuum environment (6,6·10-3 Pa) 1250 °C. The obtained electrodes were used for forming electrolytic cell. It was found that the working life of electrode depends on the porosity of the sample. During the investigation it was concluded that sample density and porosity is influenced not only by composition of raw materials, but also by mass preparation and forming technology.
Atsauce Reimanis, M., Pūra, A., Ločs, J., Freimanis, I., Bērziņa-Cimdiņa, L., Ozoliņš, J. Dense Titanium Oxide Ceramics for Water Preparation with Electrolysis. No: XIX-th International Baltic Conference „Materials Engineering & Balttrib *2010”, Latvija, Riga, 28.-29. oktobris, 2010. Riga: Institute of Inorganic Chemistry, 2010, 36.-36.lpp.
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