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	孔径可控微米级氧化铝直通孔陶瓷的制备
	龙梦龙 ; 马宁 ; 杨金龙 ; LONG Menglong ; MA Ning ; YANG Jinlong
	2016-03-30 ; 2016-03-30
关键词	海藻酸钠 氧化铝 直通孔陶瓷 孔径调控 alginate alumina honeycomb ceramics regulation of microstructure TQ174.1
其他题名	Preparation of Unidirectional Aligned Alumina Ceramics with Micron Pores
中文摘要	采用海藻酸钠自组装法制备不同孔径和气孔率的氧化铝直通孔陶瓷,研究了海藻酸钠种类和陶瓷浆料固相含量对孔径的影响。结果表明:选用高α-L-古罗糖醛酸含量的海藻酸钠,并适当增大固相含量,可制备出小孔径直通孔陶瓷;选用高β-D-甘露糖醛酸含量的海藻酸钠,并适当降低固相含量,可制备出大孔径直通孔陶瓷。通过调节浆料固相含量和海藻酸钠溶胶浓度,制备的直通孔陶瓷孔径分布为25~250μm,最高气孔率为67.0%,抗压强度最高可达212.3MPa。; Unidirectional aligned alumina ceramics with various pore sizes and porosities were prepared viaalginate self-assembling.The influences of the kind of alginate and solid loading of slurry on the pore size were investigated.The results show that alginate with a higher content ofα-L-guluronic acid and the increase of solid loading can favor the formation of the smaller pores in unidirectional aligned ceramics.The samples with the greater pores were prepared by alginate with a higher content ofβ-Dmannuronic acid and a lower solid loading.The unidirectional aligned alumina ceramics with the pores of 25--250μm were prepared viathe control of the solid loading of slurry and the content of alginate sol.The optimum porosity is 67.0%,and the compressive strength is 212.3MPa.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/141665]
专题	清华大学
推荐引用方式 GB/T 7714	龙梦龙,马宁,杨金龙,等. 孔径可控微米级氧化铝直通孔陶瓷的制备[J],2016, 2016.
APA	龙梦龙,马宁,杨金龙,LONG Menglong,MA Ning,&YANG Jinlong.(2016).孔径可控微米级氧化铝直通孔陶瓷的制备..
MLA	龙梦龙,et al."孔径可控微米级氧化铝直通孔陶瓷的制备".(2016).

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