Naslov
Spark plasma sintering of dense alumina ceramics from industrial waste scraps

Autori
Vukšić, Milan ; Žmak, Irena ; Ćurković, Lidija ; Kocjan, Andraž

Izvornik
Open Ceramics (2666-5395) 5 (2021); 100076, 7

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

Ključne riječi
circular economy ; sustainability ; ceramics ; spark plasma sintering ; alumina

Sažetak
The implementation of environmentally-friendly manufacturing, which include the reuse and recycling of ma-terials is nowadays crucial in order to meet the circular economy approach. The present study shows the possi-bility of recycling waste alumina scraps obtained after the green machining step during the manufacturing processof alumina ceramics as a broken ware, which contained small amounts (≤5 wt.% in total) of sintering additives inthe form of organic binders and MgO. Dense alumina samples containing various amounts of waste aluminapowder (0–100 wt.%) were produced by spark plasma sintering (SPS) at sintering temperature of 1450°C, dwelltime of 5 min at a 50 MPa of uniaxial pressure. The influence of waste alumina content on microstructure, hardness, and fracture toughness was investigated to determine the possibility of recycling broken ware.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti

POVEZANOST RADA