Effect of Co2+ on the Phase Formation, Mechanical Properties, and In Vitro Behavior of Ceramics in the ZrO2–Al2O3 System
| Autor: | S. M. Barinov, A. A. Konovalov, I. K. Sviridova, Sergey Smirnov, M. A. Goldberg, T. O. Obolkina, S. A. Akhmedova, Vladimir S. Komlev, O. S. Antonova, N. S. Sergeeva, V. A. Kirsanova |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010405 organic chemistry
Chemistry Sintering General Chemistry 010402 general chemistry Microstructure 01 natural sciences Indentation hardness 0104 chemical sciences Matrix (chemical analysis) Tetragonal crystal system Chemical engineering visual_art visual_art.visual_art_medium Ceramic Porosity Monoclinic crystal system |
| Zdroj: | Doklady Chemistry. 493:99-104 |
| ISSN: | 1608-3113 0012-5008 |
| DOI: | 10.1134/s0012500820070010 |
| Popis: | The effect of the introduction of Co2+ to ZrO2–10 wt % Al2O3 ceramic materials on their phase composition, porosity, microstructure, strength, microhardness, cytotoxicity, and cytocompatibility was studied. It was shown that the addition of Co2+ stabilizes the tetragonal form of ZrO2, which is the only form in sintering at 1400°С. An increase in the sintering temperature leads to the formation of the monoclinic form of ZrO2 and subsequent increase in its amount. Densely sintered ceramic materials were obtained, which had a strength of more than 860 MPa, a microhardness of up to 11 GPa, and the composition ZrO2–10 wt % Al2O3–3.8 mol % CoO (3 mol % of the introduced Co2+ cation). In vitro tests demonstrated that the materials are cytocompatible. The introduction of cobalt ions to ZrO2–10 wt % Al2O3 ceramics improves the matrix (for cells) properties. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|