Preparation of SiO2 Coated Cenosphere and Characterization of the Composite Powder

被引:3
作者
Su, Ying [1 ]
Lv, Xingdong [1 ]
Gai, Guosheng [1 ]
Yang, Yufen [1 ]
机构
[1] Tsinghua Univ, Powder Technol R&D Grp, Dept Mat Sci & Engn, Key Lab Adv Mat,Educ Minist China, Beijing 100084, Peoples R China
来源
POWDER TECHNOLOGY AND APPLICATION | 2009年 / 58卷
关键词
cenospheres; SiO2/cenosphere composites; coating; SEM; FLY-ASH; SURFACE MODIFICATION; FILLER;
D O I
10.4028/www.scientific.net/AMR.58.121
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
An attempt was made to prepare the SiO2/cenosphere composite, for which a dense layer of SiO2 particles were successfully coated on the surface of cenospheres by chemical precipitation technique. Surface morphology was observed under SEM; and the exterior constitution was examined through EDX. The result indicated that the amount of SiO2 particles coating on cenospheres decreased with the increasing pH value and the declining reaction temperature, and the particle size reduced as reaction temperature fell down.
引用
收藏
页码:121 / 128
页数:8
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