Naslov
Corrosion behavior of alumina ceramics in aqueous HCl and H2SO4 solutions

Autori
Ćurković, Lidija ; Fudurić Jelača, Mirjana ; Kurajica, Stanislav

Izvornik
Corrosion science (0010-938X) 50 (2008), 3; 872-878

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
alumina ceramics; acid corrosion; corrosion kinetics

Sažetak
The corrosion behavior of a 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 °C). Corrosion tests were also performed with 0.65 M HCl and 0.37 M H2SO4 solutions at 40, 55 and 70 °C for 48 h. 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 apsorption spectrometry (AAS). By increasing the concentration from 0.37 to 6.5 M, it was notified that the corrosion susceptibility in HCl and H2SO4 solutions for the CIP alumina specimens at room temperature decreases.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Strojarstvo

POVEZANOST RADA