Microstructures and mechanical properties of high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C ceramics with the addition of SiC secondary phase
文献类型：期刊论文
| 作者 | Lu, K; Liu, JX; Wei, XF; Bao, WC; Wu, Y; Li, F; Xu, FF; Zhang, GJ |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2020-05-01 |
| 期号 | 54页码:1839 |
| ISSN号 | 0955-2219 |
| DOI | 10.1016/j.jeurceramsoc.2019.12.056 |
| 文献子类 | Article |
| 英文摘要 | The relationships between microstructures and mechanical properties especially strength and toughness of high entropy carbide based ceramics are reported in this article. Dense (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C (HEC) and its composite containing 20 vol.% SiC (HEC-20SiC) were prepared by spark plasma sintering. The addition of SiC phase enhanced the densification process, resulting in the promotion of the formation of the single-phase high-entropy carbide during sintering. The high-entropy carbide phase demonstrated a fast grain coarsening but SiC particles remarkably inhibited this phenomena. Dense HEC and HEC-20SiC ceramics sintered at 1900 degrees C exhibits four-point bending strength of 332 +/- 24 MPa and 554 +/- 73 MPa, and fracture toughness of 4.51 +/- 0.61 MPa.m(1/2) and 5.24 +/- 0.41 MPa.m(1/2), respectively. The main toughening mechanism is considered to be crack deflection by the SiC particles. |
| WOS关键词 | CARBIDE ; COMPOSITES ; DIBORIDES ; ZIRCONIUM |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28104]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Lu, K,Liu, JX,Wei, XF,et al. Microstructures and mechanical properties of high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C ceramics with the addition of SiC secondary phase[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020(54):1839. |
| APA | Lu, K.,Liu, JX.,Wei, XF.,Bao, WC.,Wu, Y.,...&Zhang, GJ.(2020).Microstructures and mechanical properties of high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C ceramics with the addition of SiC secondary phase.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY(54),1839. |
| MLA | Lu, K,et al."Microstructures and mechanical properties of high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C ceramics with the addition of SiC secondary phase".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY .54(2020):1839. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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