Fabrication and properties of ZrB2-SiC-BN machinable ceramics
文献类型：期刊论文
| 作者 | Wu, Haitang1,2; Zhang, Weigang1 |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2010-03-01 |
| 卷号 | 30期号:4页码:1035-1042 |
| 关键词 | Zirconium diboride Boron nitride Oxidation resistance Mechanical properties Machinability |
| ISSN号 | 0955-2219 |
| 通讯作者 | Zhang, WG |
| 英文摘要 | ZrB2-SiC-BN ceramics were fabricated by hot-pressing under argon at 1800 degrees C and 23MPa pressure. The microstructure, mechanical and oxidation resistance properties of the composite were investigated. The flexural strength and fracture toughness of ZrB2-SiC-BN (40 vol%ZrB2-25 vol%SiC-35 vol%BN) composite were 378 MPa and 4.1 MPa M 112, respectively. The former increased by 34% and the latter decreased by 15% compared to those of the conventional ZrB2-SiC (80vol%ZrB2-20vol%SiC). Noticeably, the hardness decreased tremendously by about 67% and the machinability improved noticeably compared to the relative property of the ZrB2-SiC ceramic. The anisothermal and isothermal oxidation behaviors of ZrB2-SiC-BN composites from 1100 to 1500 degrees C in air atmosphere showed that the weight gain of the 80 vol%ZrB2-20 vol%SiC and 43.1 vol%ZrB2-26.9 vol%SiC-30 vol%BN composites after oxidation at 1500 degrees C for 5 h were 0.0714 and 0.0268 g/cm(2), respectively, which indicates that the addition of the BN enhances oxidation resistance of ZrB2-SiC composite. The improved oxidation resistance is attributed to the formation of ample liquid borosilicate film below 1300 degrees C and a compact film of zirconium silicate above 1300 degrees C. The formed borosilicate and zirconium silicate on the surface of ZrB2-SiC-BN ceramics act as an effective barriers for further diffusion of oxygen into the fresh interface of ZrB2-SiC-BN. (C) 2009 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Ceramics |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | HIGH TEMPERATURE CERAMICS ; SILICON-CARBIDE ; BORON-NITRIDE ; MECHANICAL-PROPERTIES ; COMPOSITES ; OXIDATION ; NANOCOMPOSITES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000274763200027 |
| 公开日期 | 2013-11-27 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6205]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Sys, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Haitang,Zhang, Weigang. Fabrication and properties of ZrB2-SiC-BN machinable ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2010,30(4):1035-1042. |
| APA | Wu, Haitang,&Zhang, Weigang.(2010).Fabrication and properties of ZrB2-SiC-BN machinable ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,30(4),1035-1042. |
| MLA | Wu, Haitang,et al."Fabrication and properties of ZrB2-SiC-BN machinable ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 30.4(2010):1035-1042. |
入库方式： OAI收割
来源：过程工程研究所
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