Effects of particle grading on porous gelcasted and solid-state-sintered SiC ceramics with improved connectivity
文献类型：期刊论文
| 作者 | Wu, Haibo; Li, Yinsheng1; Yun, Shan2; Liu, Xuejian; Huang, Zhengren; Jiang, Dongliang |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2018 |
| 卷号 | 732页码:547 |
| 关键词 | Solid-state-sintered SiC Gelcasting Particle packing Foaming Connectivity |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2017.10.260 |
| 英文摘要 | Porous gelcasted and solid-state-sintered SiC (S-SiC) ceramics with significantly improved connectivity were successfully prepared through the synergistic pore-forming mechanism of direct foaming and particle packing, using fine (D-50 = 0.5 mu m) and coarse (D-50 = 5.0 mu m) graded SiC powders as the main raw materials. As the proportion of coarse SiC powder increased, the viscosities of aqueous SiC-B4C-C slurries sharply decreased, which thus flourished foaming and enlarged bubble-derived-pore diameter in porous S-SiC ceramics, accompanied with the increased amount and size of window. Moreover, abundant particle-packing pores in struts of bubble-derived pores were also formed and even interconnected with each other at 60 wt% of coarse SiC powder. Besides, there was a remarkable increase in porosity from 61.0% to 81.7% and accordingly a significant decline in density from 1.24 g cm(-3) to 0.58 g cm(-3) as the content of coarse SiC powder increased. The optimized multiple pore microstructures resulted in an amazing nitrogen gas permeability of 1.78 x 10(-11) m(2) under the condition of an excellent compressive strength of 10.8 +/- 2.7 MPa. (C) 2017 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000415931900067 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | The authors gratefully acknowledge the financial support from National Key R&D Program of China (Grant No. 2017YFB0306400), the Scientific and Technological Innovation Project of Shanghai Institute of Ceramics (Grant No. Y62ZC2120G) and Shanghai Sailing Program (Grant No. 17YF1421600). ; The authors gratefully acknowledge the financial support from National Key R&D Program of China (Grant No. 2017YFB0306400), the Scientific and Technological Innovation Project of Shanghai Institute of Ceramics (Grant No. Y62ZC2120G) and Shanghai Sailing Program (Grant No. 17YF1421600). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24540]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 588 Heshuo Rd, Shanghai 200050, Peoples R China 2.Korea Inst Mat Sci, Engn Ceram Res Grp, Chang Won 51508, Gyeongnam, South Korea 3.Huaiyin Inst Technol, Jiangsu Collaborat Innovat Ctr Rock Salt & Concav, Jiangsu Prov Engn Lab Adv Mat Salt Chem Ind, Huaian 223003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Haibo,Li, Yinsheng,Yun, Shan,et al. Effects of particle grading on porous gelcasted and solid-state-sintered SiC ceramics with improved connectivity[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,732:547, 554. |
| APA | Wu, Haibo,Li, Yinsheng,Yun, Shan,Liu, Xuejian,Huang, Zhengren,&Jiang, Dongliang.(2018).Effects of particle grading on porous gelcasted and solid-state-sintered SiC ceramics with improved connectivity.JOURNAL OF ALLOYS AND COMPOUNDS,732,547. |
| MLA | Wu, Haibo,et al."Effects of particle grading on porous gelcasted and solid-state-sintered SiC ceramics with improved connectivity".JOURNAL OF ALLOYS AND COMPOUNDS 732(2018):547. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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