Corrosion behavior of alumina ceramics in aqueous HCl and H2SO4 solutions

Corrosion behavior of alumina ceramics in aqueous HCl and H2SO4 solutions

The corrosion behavior of cold isostatically pressed (CIP) high purity alumina ceramics in aqueous HCl and H2SO4 solutions with various concentrations has been studied simultaneously at room temperature (25 deg C). Corrosion tests were also performed with 0.65mol/l HCl and 0.37mol/l H2SO4 solutions...

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Veröffentlicht in:Corrosion science 2008-03, Vol.50 (3), p.872-878
Hauptverfasser: CURKOVIC, Lidija, FUDURIC JELACA, Mirjana, KURAJICA, Stanislav
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Sprache:eng
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Applied sciences
Corrosion
Corrosion environments
Exact sciences and technology
Metals. Metallurgy
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container_title Corrosion science
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creator CURKOVIC, Lidija
FUDURIC JELACA, Mirjana
KURAJICA, Stanislav
description The corrosion behavior of cold isostatically pressed (CIP) high purity alumina ceramics in aqueous HCl and H2SO4 solutions with various concentrations has been studied simultaneously at room temperature (25 deg C). Corrosion tests were also performed with 0.65mol/l HCl and 0.37mol/l H2SO4 solutions at 40, 55 and 70 deg C for 48h. Chemical stability was monitored by determining the amount of Al3+, Mg2+, Ca2+, Na+ Si4+ and Fe3+ ions eluted in different concentrations of HCl and H2SO4 solutions by means of atomic absorption spectrometry (AAS). By increasing the concentration from 0.37 to 6.5mol/l, it was notified that the corrosion susceptibility in HCl and H2SO4 solutions for the CIP alumina specimens at room temperature decreases.
doi_str_mv 10.1016/j.corsci.2007.10.008
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subjects Applied sciences
Corrosion
Corrosion environments
Exact sciences and technology
Metals. Metallurgy
title Corrosion behavior of alumina ceramics in aqueous HCl and H2SO4 solutions
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