دورية
Influence of Y2O3and Cr2O3on Formation of Microstructure and Properties as well as Accuracy of Reproduction of Geometric Characteristics during 3D Printing with Ceramics Based on Al2O3–ZrO2
| العنوان: | Influence of Y2O3and Cr2O3on Formation of Microstructure and Properties as well as Accuracy of Reproduction of Geometric Characteristics during 3D Printing with Ceramics Based on Al2O3–ZrO2 |
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| المؤلفون: | Kotelnikov, N. L., Goldberg, M. A., Obolkina, T. O., Smirnov, S. V., Antonova, O. S., Barinov, S. M., Komlev, V. S. |
| المصدر: | Inorganic Materials: Applied Research; August 2024, Vol. 15 Issue: 4 p1031-1038, 8p |
| مستخلص: | Abstract—Powders and ceramic composite materials in an Al2O3–ZrO2system with a concentration of ZrO2of 20 wt % are obtained. The effect of introduction of chromium oxide and yttrium oxide into Al2O3–ZrO2ceramic materials on the phase composition, porosity, microstructure, and mechanical properties is studied. It is shown that the introduction of chromium oxide leads to the improvement of sintering and mechanical properties of the ceramic. Products with the predefined shape of a corresponding computer model are obtained by 3D printing, and also their multistage thermal treatment is carried out. Densely sintered ceramic materials are obtained at 1550 and 1600°C, the open porosity of which is below 1% and microhardness is up to 1646 ± 50 HV. The samples are characterized by a dense microstructure with the grain size of zirconium dioxide from 400 nm to 2 μm and of aluminum oxide from 800 nm to 3 μm. The thickness of the layer formed during 3D printing shows a positive impact of the addition of Cr2O3on the resolution during 3D printing. |
| قاعدة البيانات: | Supplemental Index |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20751133 2075115X |
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| DOI: | 10.1134/S2075113324700564 |