CAS OpenIR  > 多相复杂系统国家重点实验室
A novel low-temperature strategy for synthesis of alumina ceramics with uniform and interconnected pores by silica coating
Sun, Zhiqiang1,2; Fan, Junmei1; Hu, Peng1; Ding, Fei1; Yang, Jun1; Yuan, Fangli1
2017-02-01
发表期刊JOURNAL OF MATERIALS SCIENCE
ISSN0022-2461
卷号52期号:3页码:1603-1616
摘要

A novel method, which involves the coating of the inactive Al2O3 microspheres with silica sol, is employed to decrease the sintering temperature for preparing porous alumina ceramics, and the influences of coating thickness and sintering conditions are discussed. The results show that the mullite necks among packed Al2O3 spheres are formed with the help of colloidal coatings at 1550 A degrees C, and the uniform and smooth pores are well reserved without visible shrinkage. In addition, the diffusion-controlled nucleation-growth process of mullite neck is set up based on EDS and XRD analysis, and the influence of inert surface of Al2O3 microspheres on mullitization kinetics is also revealed. Furthermore, the sintered necks grow and strengthen with the increase of the coating thickness because the available melt for thicker coating is more sufficient to meet capillary force. Besides, the ceramic strengthens with the increase of mullite content in necks, and the fracture mechanism transforms from glass crack to grain-boundary crack when the composition of necks changes from mullite/glass compounds to mullite. Finally, the synthesized porous ceramic shows excellent permeation flux, and its favorable pollution resistance is proved.

文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1007/s10853-016-0454-y
收录类别SCI
语种英语
关键词[WOS]DIPHASIC ALUMINOSILICATE GELS ; MULLITE FORMATION KINETICS ; SINGLE-PHASE GEL ; POROUS ALUMINA ; CRYSTALLIZATION KINETICS ; MULLITIZATION ; FABRICATION ; POWDERS ; SURFACE
WOS研究方向Materials Science
WOS类目Materials Science, Multidisciplinary
项目资助者National Natural Science Foundation of China (NSFC)(11535003 ; 51574211 ; 11575228)
WOS记录号WOS:000389409000034
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21847
专题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 Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Sun, Zhiqiang,Fan, Junmei,Hu, Peng,et al. A novel low-temperature strategy for synthesis of alumina ceramics with uniform and interconnected pores by silica coating[J]. JOURNAL OF MATERIALS SCIENCE,2017,52(3):1603-1616.
APA Sun, Zhiqiang,Fan, Junmei,Hu, Peng,Ding, Fei,Yang, Jun,&Yuan, Fangli.(2017).A novel low-temperature strategy for synthesis of alumina ceramics with uniform and interconnected pores by silica coating.JOURNAL OF MATERIALS SCIENCE,52(3),1603-1616.
MLA Sun, Zhiqiang,et al."A novel low-temperature strategy for synthesis of alumina ceramics with uniform and interconnected pores by silica coating".JOURNAL OF MATERIALS SCIENCE 52.3(2017):1603-1616.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
A novel low-temperat(3302KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Sun, Zhiqiang]的文章
[Fan, Junmei]的文章
[Hu, Peng]的文章
百度学术
百度学术中相似的文章
[Sun, Zhiqiang]的文章
[Fan, Junmei]的文章
[Hu, Peng]的文章
必应学术
必应学术中相似的文章
[Sun, Zhiqiang]的文章
[Fan, Junmei]的文章
[Hu, Peng]的文章
相关权益政策
暂无数据
收藏/分享
文件名: A novel low-temperature strategy for synthesis of alumina ceramics with uniform and interconnected pores by silica coating.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。