Study on both shape and chemical composition at the surface of fly ash by scanning electron microscope, focused ion beam, and field emission-scanning electron microscope

被引：0

作者：

Peng, M

Ruan, XG ^{[1
]}

Chen, XM

Xu, JW

Jiang, ZC

机构：

[1] Dongguan Univ Technol, Dept Appl Chem, Dongguan 523106, Peoples R China

[2] Xiangtan Univ, Coll Chem, Xiangtan 411105, Peoples R China

[3] Chinese Acad Sci, Changchun Inst Appl Chem, Natl Res & Analyt Ctr Electrochem & Spect, Changchun 130022, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2004年 / 32卷 / 09期

关键词：

surface analysis; fly ash; scanning electron microscope with energy disperse spectrum;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Micro-appearance and chemical composition at the surface of fly ash collected from Sha Zhou Power Station of Guangdong Were measured with field emission-scanning electron microscope (FE-SEM), scanning electron microscope/energy disperse spectrum (SEM/EDS) and focused Ion beam (FIB) in this paper. In FIB, it shows that the fly ash are spherical particles with diameter from 0.3 mum to 0. 5 mum and gather together to become larger group by 6 similar to 10 particles. Images of FE-SEM show that most of the fly ash are spherical particles with diameter of 0.1 similar to 1 mum and very rough at the surface cohered with much smaller spherical particles. The surface is composed of oxides of Si, Al, Fe, Ca, Mg, Cu, Zn, and Ti, with 23.6% Si, 20.5% Al, 1.43% Fe and 50.9% O.

引用

页码：1196 / 1198

页数：3