Effects of chemical treatments on thermal expansion properties of cordierite ceramics

被引：4
|
作者：
Bai Jiahai
Guo Lucun [1 ]
机构：
[1] Nanjing Univ Technol, Sch Mat Sci & Technol, Nanjing 210009, Peoples R China
[2] Shandong Univ Technol, Sch Mat Sci & Technol, Zibo 255049, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2006年 / 21卷 / 03期
关键词：
cordierite; alkali treatment; coefficient of thermal expansion (CTE);
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cordierite honeycomb ceramics was treated with 1.5 M HNO3 I followed with 1.5 M NaOH at 93 V. The combination of acid treatment with alkali treatment significantly diminished the rebounding of coefficient of thermal expansion (CTE) caused by heat treatment, a phenomenon observed in samples treated. solely with acid. Inductively coupled plasma (ICP) analysis results reveal that the alkali treatment preferentially dissolved "free" SiO2 le in the acid-treated samples which is considered to be a key factor responsible for the CTE rebounding.
引用
收藏
页码：100 / 102
页数：3
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