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The influence of hydrochloric acid treatment and temperature on the electro-physical properties of super-thin basalt fibers

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Nikoghosyan S., Sahakyan A., Gavalyan V., Harutyunyan V., Hovanisyan A., Yeritsyan H., Atoyan V., Puskulyan K., Gerchikov M., Hakobyan N.
Open Physics
|
2011
|
vol. 9
|
issue 6
1482-1487
EN
Electro-physical parameters of super-thin basalt fiber (STBF) from Armenian basalt rocks are measured before and after hydrochloric acid treatment. It is shown that specific resistance and dielectric parameters of super-thin basalt fiber change essentially after hydrochloric acid treatment. The temperature dependence of these parameters was studied too. The probable cause of the change is an increase in the total amount of pores and modification of the share of pores of various sizes in STBF, followed by an increase of absorption of water molecules from the ambient medium. The results (in both alternating and direct electric fields) are interpreted within the framework of the dipole-relaxation mechanism of the polarization of water molecules in STBF pores.
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