| Preparation of porous SiC-Al2O3 ceramics with spherical shell structures of large surface area and high strength | |
| Wan, Li1; Guo, Xinshuang1,3; Li, Kai2; Yan, Jiawei1 | |
| Corresponding Author | Guo, Xinshuang(xsguo12b@alum.imr.ac.cn) |
| 2020-06-01 | |
| Source Publication | CERAMICS INTERNATIONAL
 |
| ISSN | 0272-8842 |
| Volume | 46Issue:8Pages:10325-10331 |
| Abstract | The surface areas of porous ceramics can be enhanced by increasing their porosity but this improvement is at the expense of strength. To improve performance, it is necessary to fabricate porous ceramics with large surface areas and high strength. In this study, porous ceramics with spherical shell structures known as spherical-shell ceramics (SCs), characterised by a hollow ceramic sphere in each pore, were fabricated to address the above-mentioned problem. They were fabricated using soaked millet coated with slurries as the pore-forming agents. The compositions and particle sizes of the slurries as well as the sintering temperature were tuned to tailor the integrity, wall thicknesses and surface structures of the SCs. In addition, the formation mechanism of the SCs was proposed. Overall, the porous ceramics with SCs demonstrated large surface areas and high flexural strength. This study paves the way for the fabrication of high-performance porous ceramics. |
| Keyword | Porous ceramics Pore-forming agent Spherical-shell ceramics Surface area Formation mechanism |
| Funding Organization | Key Technologies R&D Program of China ; National Undergraduate Innovation and Entrepreneurship Training Program ; Science and Technology Project of the Jiangxi Provincial Department of Education |
| DOI | 10.1016/j.ceramint.2020.01.028 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Key Technologies R&D Program of China[2016YFC0209305] ; National Undergraduate Innovation and Entrepreneurship Training Program[201910895010] ; Science and Technology Project of the Jiangxi Provincial Department of Education[GJJ171143] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Ceramics |
| WOS ID | WOS:000528481900043 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/138757 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Guo, Xinshuang |
| Affiliation | 1.Pingxiang Univ, Jiangxi Key Lab Ind Ceram, Engn Technol Res Ctr Environm Protect Mat & Equip, Pingxiang 337055, Peoples R China 2.Jingdezhen Ceram Inst, Sch Mat Sci & Engn, Natl Light Ind Key Lab Funct Ceram Mat, Jingdezhen 333403, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wan, Li,Guo, Xinshuang,Li, Kai,et al. Preparation of porous SiC-Al2O3 ceramics with spherical shell structures of large surface area and high strength[J]. CERAMICS INTERNATIONAL,2020,46(8):10325-10331. |
| APA | Wan, Li,Guo, Xinshuang,Li, Kai,&Yan, Jiawei.(2020).Preparation of porous SiC-Al2O3 ceramics with spherical shell structures of large surface area and high strength.CERAMICS INTERNATIONAL,46(8),10325-10331. |
| MLA | Wan, Li,et al."Preparation of porous SiC-Al2O3 ceramics with spherical shell structures of large surface area and high strength".CERAMICS INTERNATIONAL 46.8(2020):10325-10331. |
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