Fabrication of In Situ ZrCp Incorporated Spherical Al2O3–ZrO2 Eutectic Powder via a Designed Plasma Treatment Process.
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| Title: | Fabrication of In Situ ZrCp Incorporated Spherical Al |
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| Authors: | Shao, Yu‐xuan1,2 (AUTHOR), Yang, Yong1,2 (AUTHOR) yangyong@hebut.edu.cn, Zhao, Hong‐jian1 (AUTHOR), Li, Wei1 (AUTHOR), Ru, Pei‐wen1,3 (AUTHOR), Wang, Yong‐gang1,4 (AUTHOR), Wang, Tao5 (AUTHOR), Gao, Sheng‐yong6 (AUTHOR), Li, Dongyang2 (AUTHOR) |
| Source: | Journal of the American Ceramic Society. Jul2026, Vol. 109 Issue 7, p1-11. 11p. |
| Subjects: | Plasma materials processing, Composite material manufacturing, X-ray diffraction, Ceramic powders, Cooling, Ceramic materials, Microstructure, Chemical synthesis |
| Abstract: | Dense and spherical Al2O3–ZrO2–ZrCp ceramic powder was prepared by plasma treating YSZ–Al–SiC reactive precursor and air–water double cooling. The Al2O3–ZrO2 matrix was composed of fine‐grain columnar alumina‐rich structures and nanoeutectic with a phase spacing smaller than 50 nm. In situ and compatible compositing of submicron ZrC particles within the oxide matrix was achieved via thermite‐reactive synthesis triggered by rapid plasma heating. A suitable particle size range of the reactive precursor, 30∼45 µm, was distinguished after plasma treatment for the preparation of the effectively treated powder. Phase evolutions from the precursor to the final powder were analyzed using X‐ray diffraction, Raman, and FT‐IR methods. The preservation of a refined microstructure and good compatibility between the carbide and the oxide matrix in the as‐prepared powder can be attributed to the proper design of the reactive system and effective control of cooling. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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