Naslov
DEGREE OF DISSOLUTION OF ALUMINA CERAMICS IN HCl AQUEOUS SOLUTION

Autori
Ćurković, Lidija ; Fudurić Jelača, Mirjana

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

Izvornik
” Trends in the Development of Machinery and Associated Technology” / Ekinović, Sabahudin ; Yalcin, Senay ; Vivancos Calvet, Joan - Zenica, 2008, 1101-1104

ISBN
978-9958-617-41-6

Skup
12th International Research/Expert Conference ” Trends in the Development of Machinery and Associated Technology” TMT 2008

Mjesto i datum
Istanbul, Turska, 26.08.2008. - 30.08.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
alumina ceramics; degree of dissolution; corrosion

Sažetak
Two main types of chemical resistance of ceramics are acid resistance and alkali resistance. Although ceramics are generally more stable in corrosive environments than common metallic materials, it is important to investigate the chemical resistance under highly corrosive conditions, such as a strong acid and a long period of exposure. Because of that, the corrosion behaviour of a cold isostatically pressed (CIP) high purity alumina ceramics in aqueous HCl solutions at the mass concentrations of 2, 10 and 20 wt. % has been studied. From the amounts of Al3+, Mg2+, Ca2+, Na+ Si4+ and Fe3+ ions released in the corrosive solution, a degree of dissolution  i for each component was calculated according to equation  i = A/B, where A and B are respectively the amount of the element released in the corrosive solution and the amount of the element in the untreated material. The determination of the amount of ions released in the corrosive solutions was carried out by means of atomic absorption spectrometry (AAS).

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Strojarstvo

POVEZANOST RADA