Mechanical properties of ceria-calcia stabilized zirconia ceramics with alumina additions
10.1016/j.jeurceramsoc.2021.05.006
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/348241
Tipus de documentArticle
Data publicació2021-09
EditorElsevier
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Ceria-stabilized zirconia-based composites have been developed aiming to obtain ceramic materials with enhanced hardness, strength, fracture toughness, and resistance to low temperature degradation. These composites are based on ceria-calcia stabilized zirconia (10 mol% CeO2-1 mol% CaO TZP) and a-alumina (0-15 wt%) as a second phase. Raw materials in the form of powders were dispersed through ball milling, dried by slip casting, and subsequently grounded before being pressed and conventionally sintered at 1450 °C. Compared to the strength and hardness of 10Ce-TZP ceramics (typically 500 MPa and 6 GPa), an increase was observed for all compositions, especially for 10Ce-1CaO-5Al2O3 (739 MPa and 10.2 GPa). Single Edge V-Notched Beam fracture toughness values ranged from 5.1 to 6.6 MPa·vm, indicating a loss of transformability for all compositions. As in 10Ce-1CaO-TZP co-doped ceramics, the aging resistance of all alumina-containing composites was also excellent.
CitacióTovar-Vargas, D. [et al.]. Mechanical properties of ceria-calcia stabilized zirconia ceramics with alumina additions. "Journal of the European Ceramic Society", Setembre 2021, vol. 41, núm. 11, p. 5602-5612.
ISSN0955-2219
Versió de l'editorhttps://www.sciencedirect.com/science/article/abs/pii/S0955221921003319
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
2021-Mechanical ... with alumina additions.pdf | 6,333Mb | Visualitza/Obre |