干旱区生态环境知识资源中心(Arid): Porous alumina-felsite ceramic composites prepared by direct coagulation casting method: Felsite rock (central-eastern desert, Egypt)

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DOI	10.1016/j.ceramint.2020.07.334
	Porous alumina-felsite ceramic composites prepared by direct coagulation casting method: Felsite rock (central-eastern desert, Egypt)
	Khattab, R. M.; Hessien, M. A.; Abd El Ghaffar, N., I; Abd El Rahim, S. H.; Sadek, H. E. H.
通讯作者	Hessien, MA
来源期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
EISSN	1873-3956
出版年	2020
卷号	46 期号:18 页码:28308-28315
英文摘要	In this work, the direct coagulation casting method was used to shape porous alumina-felsite ceramic composites. The felsite rocks used in this work were extracted from Wadi Atalla area, central-eastern desert, Egypt. Felsite is studied geologically, microscopically, and applied as a source for silica. The effect of felsite raw material additions up to 30 wt% and the effect of firing temperatures on the alumina were also investigated. The zeta potential of the suspended ceramic slurries was studied at different Ammonium Citrate Tribasic (ACT) concentraion and at different wt.% of felsite. Also, the viscosity was measured at different wt.% of felsite. The bulk density, apparent porosity and linear shrinkage were measured as well as the mechanical properties of the fired samples. The phase composition and the microstructural evolution of the fired samples were determined by XRD and SEM, respectively. Felsite additions enhance the physical and mechanical properties of the fired samples. The DCC process yields high-strength porous ceramic bodies and highly reliable ceramic parts. The results showed that the porous ceramic composites can be fired at 1600 degrees C to achieve apparent porosity of 40% and compressive strength of 35 MPa at 30 wt% of felsite.
英文关键词	Egyptian central-eastern desert Felsite rock Direct coagulation casting Porous alumina Alumina composites
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000582503700044
WOS关键词	MACROPOROUS CERAMICS ; SUSPENSION
WOS类目	Materials Science, Ceramics
WOS研究方向	Materials Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327133
作者单位	[Khattab, R. M.; Hessien, M. A.; Sadek, H. E. H.] Natl Res Ctr, Refractories Ceram & Bldg Mat Dept, Giza 12622, Egypt; [Abd El Ghaffar, N., I; Abd El Rahim, S. H.] Natl Res Ctr, Geol Sci Dept, Giza 12622, Egypt
推荐引用方式 GB/T 7714	Khattab, R. M.,Hessien, M. A.,Abd El Ghaffar, N., I,et al. Porous alumina-felsite ceramic composites prepared by direct coagulation casting method: Felsite rock (central-eastern desert, Egypt)[J],2020,46(18):28308-28315.
APA	Khattab, R. M.,Hessien, M. A.,Abd El Ghaffar, N., I,Abd El Rahim, S. H.,&Sadek, H. E. H..(2020).Porous alumina-felsite ceramic composites prepared by direct coagulation casting method: Felsite rock (central-eastern desert, Egypt).CERAMICS INTERNATIONAL,46(18),28308-28315.
MLA	Khattab, R. M.,et al."Porous alumina-felsite ceramic composites prepared by direct coagulation casting method: Felsite rock (central-eastern desert, Egypt)".CERAMICS INTERNATIONAL 46.18(2020):28308-28315.