Effect of solid solution and boron vacancy on the microstructural evolution and high temperature strength of W-doped ZrB2 ceramics
文献类型：期刊论文
| 作者 | Ding, HJ; Wang, XG; Xia, JF; Bao, WC; Zhang, GJ; Zhang, C; Jiang, DY |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2020-06-25 |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2020.154293 |
| 文献子类 | Article |
| 英文摘要 | W-doped ZrB2 ceramics were hot-pressed at 1800-2100 degrees C by using W additive. The effects of W doping on the densification, microstructure, and high temperature strength of ZrB2 ceramics were investigated. The reaction between ZrB2 and W resulted in the formation of WB, ZrB and boron vacancies in ZrB2-x. The solid solution formed by dissolving WB in ZrB2-x has core-shell structure, inhibited the grain growth and densification of ZrB2 ceramics. (W,Zr)B converted to liquid promoted densification at 2100 degrees C, and dissolved the oxygen from the surface of ZrB2 powders. The ZrB2 ceramics with 3-10 vol% W exhibited fine microstructures and high grain boundary strength. The cleaning boundary produced by WB significantly improved the flexural strength of ZrB2 ceramics at 25-1600 degrees C. (Zr,W)B precipitated from vacancy-rich (Zr,W)B2-x solid solution under tensile stress at 1600 degrees C. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | MECHANICAL-PROPERTIES ; OXIDATION BEHAVIOR ; CARBIDE CERAMICS ; COMPOSITE ; DENSIFICATION ; RESISTANCE ; STABILITY ; TUNGSTEN ; DESIGN |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27956]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Ding, HJ,Wang, XG,Xia, JF,et al. Effect of solid solution and boron vacancy on the microstructural evolution and high temperature strength of W-doped ZrB2 ceramics[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020. |
| APA | Ding, HJ.,Wang, XG.,Xia, JF.,Bao, WC.,Zhang, GJ.,...&Jiang, DY.(2020).Effect of solid solution and boron vacancy on the microstructural evolution and high temperature strength of W-doped ZrB2 ceramics.JOURNAL OF ALLOYS AND COMPOUNDS. |
| MLA | Ding, HJ,et al."Effect of solid solution and boron vacancy on the microstructural evolution and high temperature strength of W-doped ZrB2 ceramics".JOURNAL OF ALLOYS AND COMPOUNDS (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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