Properties and Synthesis of Porous Cordierite from Fly Ash

被引：2
作者：
Kim, Sung-Jin [1 ]
Bang, Hee-Gon [1 ]
Park, Sang-Yeup [1 ,2 ]
机构：
[1] Kangnung Natl Univ, Dept Ceram Engn, Kangnung 210702, South Korea
[2] Kangnung Natl Univ, Technol Innovat Ctr Fine Ceram, Kangnung 210702, South Korea
来源：
JOURNAL OF THE KOREAN CERAMIC SOCIETY | 2006年 / 43卷 / 06期
关键词：
Cordierite; Fly ash; Phase change behavior;
D O I：
10.4191/kcers.2006.43.6.344
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Porous cordierite was synthesized by the mechano-chemical processing using fly ash. The phase evolution of cordierite was investigated as a function of processing variables such as milling time and sintering temperature. In this study, the phase transition path of cordierite from fly ash was followed by sapprine/spinel -> mullite/ spinel -> alpha-cordierite. Porous cordierite fabricated after 32 h of milling time and sintering at 1150 degrees C showed relatively low thermal expansion coefficient (2.5 x 10(-6)/degrees C (25 similar to 1000 degrees C)) and high porosity (75%).
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页码：344 / 350
页数：7
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