Embedded ZrC-SiC nanocomposites from hydrothermal precursor with temperature-dependent oxidation resistance and high sinterability
文献类型：期刊论文
| 作者 | Xu, Wentao1; Zhou, Youfu1; Lin, He1; Lu, Shuai1,2; Ling, Junrong1,2; Wang, Rui1,2; Wang, Zhiguang3; Wang, Kun4 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2019-06-30 |
| 卷号 | 791页码:316-327 |
| ISSN号 | 0925-8388 |
| 关键词 | ZrC-SiC nanocomposite Hydrothermal precursor Oxidation resistance Embedded morphology Spark plasma sintering |
| DOI | 10.1016/j.jallcom.2019.03.299 |
| 通讯作者 | Zhou, Youfu(yfzhou@fjirsm.ac.cn) |
| 英文摘要 | ZrC-SiC nanocomposites were synthesized via a facile, green hydrothermal precursor conversion method. The zirconium, silicon and decomposed glucose can be successfully incorporated into a homogeneous framework. In subsequent pyrolysis, the precursor transforms to a core-matrix structure of the nanoZrO(2) and amorphous carbon/silica mixture, resulting in a short diffusion path and limited grain growth. Carbide first appears at a low temperature of 1200 degrees C, and the conversion is completed at 1500 degrees C with low oxygen content. The composite consists of grains about 100 nm, exhibiting specific embedded morphology, and has different oxidation resistance in three temperature zones based on the component. The origin mechanism and properties have been elucidated and analyzed. The present work demonstrates the effectiveness of hydrothermal chemistry for the synthesis of carbide composites and their promising application in high temperature protection. Such nanocomposites with controllable morphology and high sinterability beneficial for subsequent densification are also verified. The additive free ceramic has been obtained with almost fully density (relative density >99%) at a low temperature of 1700 degrees C by spark plasma sintering (SPS). The sintered specimen possesses fine microstructure with hierarchical grain size distribution (about 1 mu m and 100 nm, respectively) and good mechanical properties (fracture toughness of 4.3 +/- 0.4 MPa m(1/2) and Vickers hardness of 22.8 +/- 0.7 GPa). (C) 2019 Published by Elsevier B.V. |
| 收录类别 | SCI |
| WOS关键词 | IN-SITU SYNTHESIS ; MECHANICAL-PROPERTIES ; ZIRCONIUM CARBIDE ; SINTERING KINETICS ; SOL-GEL ; CERAMICS ; MICROSTRUCTURE ; COMPOSITE ; REDUCTION ; POWDERS |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000465282500035 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555503 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhou, Youfu |
| 作者单位 | 1.Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 73000, Gansu, Peoples R China 4.Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Wentao,Zhou, Youfu,Lin, He,et al. Embedded ZrC-SiC nanocomposites from hydrothermal precursor with temperature-dependent oxidation resistance and high sinterability[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,791:316-327. |
| APA | Xu, Wentao.,Zhou, Youfu.,Lin, He.,Lu, Shuai.,Ling, Junrong.,...&Wang, Kun.(2019).Embedded ZrC-SiC nanocomposites from hydrothermal precursor with temperature-dependent oxidation resistance and high sinterability.JOURNAL OF ALLOYS AND COMPOUNDS,791,316-327. |
| MLA | Xu, Wentao,et al."Embedded ZrC-SiC nanocomposites from hydrothermal precursor with temperature-dependent oxidation resistance and high sinterability".JOURNAL OF ALLOYS AND COMPOUNDS 791(2019):316-327. |
入库方式： iSwitch采集
来源：寒区旱区环境与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。