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[1]徐 慢,王 亮,祝 云,等.多孔大通量莫来石相碳化硅陶瓷的制备与表征[J].武汉工程大学学报,2015,37(02):15-20.[doi:10. 3969/j. issn. 1674-2869. 2015. 02. 004]
 ,,et al.Fabrication and characterization of big flux and porous mullite phase of silicon carbide ceramic[J].Journal of Wuhan Institute of Technology,2015,37(02):15-20.[doi:10. 3969/j. issn. 1674-2869. 2015. 02. 004]
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多孔大通量莫来石相碳化硅陶瓷的制备与表征(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年02期
页码:
15-20
栏目:
材料科学与工程
出版日期:
2015-02-28

文章信息/Info

Title:
Fabrication and characterization of big flux and porous mullite phase of silicon carbide ceramic
文章编号:
1674-2869(2015)02-0015-06
作者:
徐 慢王 亮祝 云王树林沈 凡季家友*
武汉工程大学材料科学与工程学院,湖北 武汉 430074
Author(s):
XU ManWANG LiangZHU YunWANG Shu-linSHEN Fan;JI Jia-you
School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China
关键词:
多孔陶瓷莫来石碳化硅通量
Keywords:
porous ceramics mullite silicon carbide flux
分类号:
TB35
DOI:
10. 3969/j. issn. 1674-2869. 2015. 02. 004
文献标志码:
A
摘要:
采用碳化硅作为陶瓷骨料,氧化铝和二氧化硅高温反应生成的莫来石作为陶瓷粘接剂,三氧化二钇作为烧结助剂,羧甲基纤维素钠作为生坯粘接剂,合成石墨作为造孔剂,在二氧化碳气氛下,1 450 ℃保温2 h,成功制备了以莫来石作粘结相的碳化硅多孔陶瓷,考察了不同莫来石组分对多孔陶瓷的物相组成、抗折强度、孔隙率、微观形貌及通孔孔径分布的影响. 结果表明:随着莫来石质量分数的逐渐增加,多孔陶瓷的抗折强度先增加后降低,孔隙率逐渐降低;样品中莫来石的质量分数为25%时多孔陶瓷的性能最佳,其抗折强度为27.81 MPa,孔隙率为38.88%. 多孔陶瓷的通孔孔径分布范围为1~8 μm,以1~2 μm的孔径为主.
Abstract:
The porous silicon carbide ceramic was fabricated under the atmosphere of carbon dioxide at 1 450 ℃ for 2 h, using ceramic aggregate of silicon carbide, ceramic binder of mullite by heating alumina and silica, sintering aid of yttrium trioxide, green bodies binder of sodium carboxymethyl cellulose and pore former of synthetic graphite. The effects of different components of mullite on phase composition, flexural strength, porosity, microstructure and through?鄄hole pore size distribution of the porous ceramic were explored. The results show that when the mass fraction of mullite increases, the flexural strength of porous ceramics first increases and then decreases and the porosity of porous ceramics decreases gradually; the porous ceramic has best performance when the mass fraction of mullite is 25%, the flexural strength and porosity of which are 27.81 MPa and 38.88%; the distribution range of the through-hole pore size of porous ceramic is 1-8 μm, and most of it is 1-2 μm.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2015-01-08作者简介:徐 慢(1964-),男,湖北溪水人,研究员,博士研究生导师.研究方向:节能新材料、环保新材料的开发与研究. *通信作者:季家友(1983-),男,山东日照人,博士研究生.研究方向:节能新材料、环保新材料的开发与研究.
更新日期/Last Update: 2015-03-20