Polymer precursor-derived HfC-SiC ultrahigh-temperature ceramic nanocomposites
文献类型：期刊论文
| 作者 | Cai, Tao1,2; Liu, Dan1; Qiu, WenFeng2; Han, WeiJian2; Zhao, Tong2 |
| 刊名 | JOURNAL OF THE AMERICAN CERAMIC SOCIETY
 |
| 出版日期 | 2018 |
| 卷号 | 101期号:1页码:20-24 |
| 关键词 | Carbothermal Reduction Microstructure Polymer Precursor Phase Transformation Ultrahigh-temperature Ceramics |
| 英文摘要 | Due to poor mechanical properties and antioxidation properties, etc of single phase ultrahigh-temperature ceramics (UHTCs), the second phase such as SiC was usually introduced for improving those properties. Herein, a novel stratagem for synthesis of binary HfC-SiC ceramics has been presented. A Hf-O-Hf polymer as a HfO2 precursor has been synthesized for preparing soluble HfC-SiC precursors with high solid content and low viscosity solutions without additional organic solvents. The structure of PHO was characterized by FTIR and H-1-NMR, the crystalline behavior and morphologies of polymer-derived ceramics were identified by XRD, SEM-EDS, and TEM. It was shown that PHO firstly transformed into HfO2, and then reacted with in situ carbon derived from DVB and PCS thus producing cubic HfC through carbothermal reduction. In addition, the obtained HfC-SiC nanopowders exhibited spherical morphology with a diameter less than 100 nm, while the Hf, Si, and C are homogeneously distributed. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38891]  |
| 专题 | 化学研究所_其它 |
| 作者单位 | 1.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Adv Polymer Mat, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Tao,Liu, Dan,Qiu, WenFeng,et al. Polymer precursor-derived HfC-SiC ultrahigh-temperature ceramic nanocomposites[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2018,101(1):20-24. |
| APA | Cai, Tao,Liu, Dan,Qiu, WenFeng,Han, WeiJian,&Zhao, Tong.(2018).Polymer precursor-derived HfC-SiC ultrahigh-temperature ceramic nanocomposites.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,101(1),20-24. |
| MLA | Cai, Tao,et al."Polymer precursor-derived HfC-SiC ultrahigh-temperature ceramic nanocomposites".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 101.1(2018):20-24. |
入库方式： OAI收割
来源：化学研究所
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