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In situ synthesis, structure, and properties of bulk nanolaminate YAl3C3 ceramic
Zhao, Guorui; Chen, Jixin; Li, Yueming; Zheng, Liya; Li, Jialin; Wang, Xiaohui; Li, Meishuan; Chen, JX (reprint author), 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2017
发表期刊JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
卷号37期号:1页码:83-89
摘要Polycrystalline YAl3C3 ceramic was fabricated by an in situ hot-pressing process using YH2, Al, and C powders as starting materials. The crystal structure of YAl3C3 was determined by X-ray diffraction and ab initio calculations to be a hexagonal space group P6(3)/mmc. The lattice parameters are a = b = 3.424 angstrom, c = 17.291 angstrom, and the atomic positions are Y at 2a (0, 0, 0), Al1 at 2d (1/3, 2/3, 3/4), Al2 at 4f (1/3, 2/3, 0.138), Cl at 2c (1/3, 2/3, 1/4), and C2 at 4f (1/3, 2/3, 0.6045). The reaction synthesis path for YAl3C3 was presented. Microstructure observations revealed that YAl3C3 ceramic had plate-like grain morphology. The elastic, mechanical and thermal properties of YAl3C3 were investigated. Most significantly of all, the Young's modulus of YAl3C3 could retain 276 GPa (85% of that at room temperature) at 1500 degrees C, suggesting that YAl3C3 is a promising lightweight high temperature structural material. (C) 2016 Elsevier Ltd. All rights reserved.; Polycrystalline YAl3C3 ceramic was fabricated by an in situ hot-pressing process using YH2, Al, and C powders as starting materials. The crystal structure of YAl3C3 was determined by X-ray diffraction and ab initio calculations to be a hexagonal space group P6(3)/mmc. The lattice parameters are a = b = 3.424 angstrom, c = 17.291 angstrom, and the atomic positions are Y at 2a (0, 0, 0), Al1 at 2d (1/3, 2/3, 3/4), Al2 at 4f (1/3, 2/3, 0.138), Cl at 2c (1/3, 2/3, 1/4), and C2 at 4f (1/3, 2/3, 0.6045). The reaction synthesis path for YAl3C3 was presented. Microstructure observations revealed that YAl3C3 ceramic had plate-like grain morphology. The elastic, mechanical and thermal properties of YAl3C3 were investigated. Most significantly of all, the Young's modulus of YAl3C3 could retain 276 GPa (85% of that at room temperature) at 1500 degrees C, suggesting that YAl3C3 is a promising lightweight high temperature structural material. (C) 2016 Elsevier Ltd. All rights reserved.
部门归属[zhao, guorui ; chen, jixin ; li, yueming ; zheng, liya ; li, jialin ; wang, xiaohui ; li, meishuan] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [zhao, guorui ; li, yueming] univ chinese acad sci, beijing 100039, peoples r china
关键词Layered Carbide Yal3c3 Crystal Structure Mechanical Properties High Temperature Stiffness
学科领域Materials Science, Ceramics
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78386
专题中国科学院金属研究所
通讯作者Chen, JX (reprint author), 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Zhao, Guorui,Chen, Jixin,Li, Yueming,et al. In situ synthesis, structure, and properties of bulk nanolaminate YAl3C3 ceramic[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2017,37(1):83-89.
APA Zhao, Guorui.,Chen, Jixin.,Li, Yueming.,Zheng, Liya.,Li, Jialin.,...&Chen, JX .(2017).In situ synthesis, structure, and properties of bulk nanolaminate YAl3C3 ceramic.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,37(1),83-89.
MLA Zhao, Guorui,et al."In situ synthesis, structure, and properties of bulk nanolaminate YAl3C3 ceramic".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 37.1(2017):83-89.
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