Preparation of porous SiC-Al2O3 ceramics with spherical shell structures of large surface area and high strength

doi:10.1016/j.ceramint.2020.01.028

IMR OpenIR

	Preparation of porous SiC-Al2O3 ceramics with spherical shell structures of large surface area and high strength
	Wan, Li 1; Guo, Xinshuang 1,3; Li, Kai 2; Yan, Jiawei 1
通讯作者	Guo, Xinshuang(xsguo12b@alum.imr.ac.cn)
	2020-06-01
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	46 期号:8 页码:10325-10331
摘要	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.
关键词	Porous ceramics Pore-forming agent Spherical-shell ceramics Surface area Formation mechanism
资助者	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
收录类别	SCI
语种	英语
资助项目	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研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000528481900043
出版者	ELSEVIER SCI LTD
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/138757
专题	中国科学院金属研究所
通讯作者	Guo, Xinshuang
作者单位	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
推荐引用方式 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.