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Title

CORROSION BEHAVIOR OF NANO ALKOXYSILANE COATING ON COPPER SUBSTRATES IN 3.5% (W) NACL SOLUTION

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Abstract

 IN THIS RESEARCH, TWO ALKOXYSILANES, SUCH AS TETRAETHOXYSILANE (TEOS) AND 3-TRI- METHOXYSILYL-1-PROPANETHIOL (TPS) WERE INVESTIGATED TO EVALUATE THE INFLUENCE OF THE SILANE MOLECULE STRUCTURE TOWARDS COPPER CORROSION PROTECTION. THE SILANE SOLUTION WAS PREPARED BY DISSOLVING SILANE AGENTS IN A MIXTURE OF DISTILLED WATER AND ETHANOL. THE PROTECTIVE PROPERTIES OF COVERED AND UNCOVERED COPPER SPECIMENS IN 3.5% NACL SOLUTION WAS INVESTIGATED BY POTENTIODYNAMIC POLARIZATION CURVES AND ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (EIS). THE ALKOXYSILANES COATINGS PRESENTED EXCELLENT INHIBITION EFFECT TO THE COPPER CORROSION AND STABILITY IN WATER CONTAINING CL-. FURTHERMORE, THE SURFACE MORPHOLOGICAL STUDY BY FIELD EMISSION GUN SCANNING ELECTRON MICROSCOPE SHOWED THE BALL LIKE SILICA PARTICLES DISTRIBUTED ON THE COPPER SUBSTRATE WITH PARTICLE SIZES RANGING FROM 75 TO 250 NM.

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