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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 AuthorGuo, Xinshuang(xsguo12b@alum.imr.ac.cn)
2020-06-01
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume46Issue:8Pages:10325-10331
AbstractThe 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.
KeywordPorous ceramics Pore-forming agent Spherical-shell ceramics Surface area Formation mechanism
Funding OrganizationKey Technologies R&D Program of China ; National Undergraduate Innovation and Entrepreneurship Training Program ; Science and Technology Project of the Jiangxi Provincial Department of Education
DOI10.1016/j.ceramint.2020.01.028
Indexed BySCI
Language英语
Funding ProjectKey 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 AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000528481900043
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138757
Collection中国科学院金属研究所
Corresponding AuthorGuo, Xinshuang
Affiliation1.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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