Naslov
Corrosion behaviour alumina ceramics in aqueous HCl solution

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

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
MATRIB 2007 / Krešimir, Grilec - Vela Luka : Hrvatsko društvo za materijale i tribologiju (HDMT), 2007, 32-39

ISBN
978-953-7040-12-3

Skup
12. Savjetovanje o materijalima, tehnologijama, trenju i trošenju

Mjesto i datum
Vela Luka, Hrvatska, 21.06.2007. - 23.06.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
aluminij oksidna keramika; korozija u kiselini; brzina korozije
(alumina ceramics; acid corrosion; corrosion kinetics)

Sažetak
Two main types of chemical resistance of ceramics are: acid and alkali resistance. Although ceramics are generally more stable in corrosive environments than are common metallic materials, it is important to be investigate the chemical resistance under highly corrosive conditions for example: strong acid and long period of time expose. Because of that the corrosion behaviour of a cold isostatically pressed (CIP) high purity alumina ceramics in aqueous HCl solution at mass concentration of 2, 10 and 20 wt. % have been studied. The rate of corrosion was monitored by determination of mass concentration of Al3+, Mg2+, Ca2+, Na+ Si4+ and Fe3+ ions eluted in different concentration of HCl by means of atomic apsorption spectrometry (AAS). Increasing the concentration from 2 to 20 wt. % it was notified that the corrosion susceptibility in HCl solutions for the CIP alumina specimens at room temperature decreases.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Strojarstvo

POVEZANOST RADA