Naslov
Erosion mechanisms of slip cast composite Al2O3-ZrO2 ceramics

Autori
Sakoman, Matija ; Grilec, Krešimir ; Ćurković, Lidija ; Majić Renjo, Marijana ; Sladojević, Milan

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

Izvornik
MATRIB 2014 / Šolić, Sanja ; Šnajdar Musa, Mateja - Zagreb : Hrvatsko društvo za materijale i tribologiju (HDMT), 2014, 503-508

Skup
International conference MATRIB 2014 - materials, tribology, recycling

Mjesto i datum
Vela Luka, Hrvatska, 26.06.2014. - 28.06.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Al2O3; Al2O3-t-ZrO2; slip casting; solid particle erosion

Sažetak
In this paper highly concentrated (70 wt. %) aqueous Al2O3 and Al2O3–t-ZrO2 suspensions were prepared. Dispersant DOLAPIX CE64 was used for stabilization. Green bodies were formed by slip casting process in plaster mould. After drying, green bodies were sintered at a temperature of 1650 °C. SEM-EDS analysis of prepared samples confirmed the homogeneous distribution of ZrO2 in Al2O3 matrix. Erosive wear resistance of sintered monolithic Al2O3 and composite Al2O3–t-ZrO2 ceramics was determined by SEM analysis of the sample surface morphology before and after erosion at impact angle of 90° and SiO2 as erodent particles. Surface morphology analysis after erosion showed that wear scars were significantly larger on Al2O3 than on Al2O3–t-ZrO2 samples. All conducted tests showed that tribological properties of monolithic Al2O3 can be improved with the addition of t-ZrO2.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA