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Phase composition, microstructure, and properties of Al4O4C-(Al2OC)(1-x)(AlN)(x)-Zr2Al3C4-Al2O3 refractories prepared at high temperatures in nitrogen
Yan, Mingwei1; Zhang, Jiayu1; Sun, Guangchao1; Liu, Kaiqi1; Li, Yong2
2021-11-01
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume47Issue:21Pages:30298-30309
AbstractThe novel Al4O4C-(Al2OC)(1-x)(AlN)(x)-Zr2Al3C4-Al2O3 refractories with ultra-low carbon content have been successfully prepared by constructing the core-shell structure of aluminum at 1300-1700 degrees C in nitrogen. The phase composition, microstructure, and properties of the novel refractories are deeply investigated. The cracking temperature on the core-shell structure of aluminum is further explored and the reaction mechanism of Zr2Al3C4 has also added explanation. The results show that the novel refractories have excellent physical properties and cannot be corroded by molten iron. There exist two different Al2OC solid solutions in the novel refractories, Al2OC-rich (Al2OC)(1-x)(AlN)(x) and AlN-rich (Al2OC)(1-x)(AlN)(x). The temperatures affect their relative content. When temperatures are less than 1600 degrees C, the relative content of Al2OC-rich (Al2OC)(1-x)(AlN)(x) is more than that of AlNrich (Al2OC)1(-x)(AlN)(x). When temperatures are above 1700 degrees C, the relative content of AlN-rich (Al2OC)(1-x)(AlN)(x) is more than that of Al2OC-rich (Al2OC)(1-x)(AlN)(x). The core-shell structure of aluminum fully ruptures at about 1200 degrees C. Zr2Al3C4 begins to form at about 1000 degrees C and generates in large at 1200 degrees C.
KeywordUltra-low carbon content (Al2OC)(1-x)(AlN)(x) Zr2Al3C4 Properties
DOI10.1016/j.ceramint.2021.07.210
Language英语
WOS KeywordAL2O3-C REFRACTORIES ; THERMOMECHANICAL PROPERTIES ; MECHANICAL-PROPERTIES ; SOLID-SOLUTION ; EVOLUTION ; ALUMINA ; AL4O4C
Funding ProjectKey Research Program of Nanjing IPE Institute of Green Manufacturing Industry ; University of Science and Technology Beijing
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
Funding OrganizationKey Research Program of Nanjing IPE Institute of Green Manufacturing Industry ; University of Science and Technology Beijing
WOS IDWOS:000701888900002
PublisherELSEVIER SCI LTD
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50273
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Kaiqi; Li, Yong
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Yan, Mingwei,Zhang, Jiayu,Sun, Guangchao,et al. Phase composition, microstructure, and properties of Al4O4C-(Al2OC)(1-x)(AlN)(x)-Zr2Al3C4-Al2O3 refractories prepared at high temperatures in nitrogen[J]. CERAMICS INTERNATIONAL,2021,47(21):30298-30309.
APA Yan, Mingwei,Zhang, Jiayu,Sun, Guangchao,Liu, Kaiqi,&Li, Yong.(2021).Phase composition, microstructure, and properties of Al4O4C-(Al2OC)(1-x)(AlN)(x)-Zr2Al3C4-Al2O3 refractories prepared at high temperatures in nitrogen.CERAMICS INTERNATIONAL,47(21),30298-30309.
MLA Yan, Mingwei,et al."Phase composition, microstructure, and properties of Al4O4C-(Al2OC)(1-x)(AlN)(x)-Zr2Al3C4-Al2O3 refractories prepared at high temperatures in nitrogen".CERAMICS INTERNATIONAL 47.21(2021):30298-30309.
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