膜科学与技术

Position：Home >> Abstract

Preparation and Properties of Porous Silicon Carbide Ceramic by Gelcasting

Authors： BIAN Qiang,ZHANG Hanyu，FAN Yiqun

Units： State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China

KeyWords： porous silicon carbide; gelcasting; in-situ reaction; hot gas purification

ClassificationCode：TQ174

year,volume(issue):pagination： 2014,34(1):29-33

Abstract：

Porous silicon carbide(SiC) ceramics used for hot gas purification were prepared from SiC particle by an in-situ reaction, the ceramic green body was fabricated by gelcasting. This work mainly investigated the influences of monomer content and sintering procedure on the performance of porous SiC ceramic. The results indicate that the SiC particles dispersed stably in the slurry with suitable monomer content. The oxidation degree of SiC is raised with the sintering temperature and holding time increasing. The XRD analysis reveals the mullite is formed when the temperature reaches to 1550 oC which could obviously improve the flexural strength. Porous SiC ceramics with good properties can be prepared by gelcasting when sintered at 1550 oC for 4 h. The flexural strength, porosity, average pore size, and N2 permeability of the porous ceramics are about 20.4 MPa, 37%, 23 μm and of 2.01×10-12 m2, respectively.

Funds：

国家“863”计划课题(2012AA03A606)、江苏高校优势学科建设工程资助项目

AuthorIntro：

卞强(1988-), 男, 江苏省张家港市人, 硕士, 从事膜分离材料的研究与应用. *通讯联系人

Reference：

[1]任祥军, 程忠勇, 孟广耀, 等. 陶瓷膜用于气固分离的研究现状和前景[J]. 膜科学与技术, 2005, 25(2): 65-68.
[2]Pastila P, Helanti V, Nikkila A, et al. Environmental effects on microstructure and strength of SiC-based hot gas filters[J]. Journal of the European Ceramic Society, 2001, 21(9): 1261-1268.
[3]徐南平, 邢卫红, 赵宜江. 无机膜分离技术与应用[M]. 北京: 化学工业出版社, 2003.
[4]李俊峰, 林红, 李建保. 碳化硅多孔陶瓷气孔率和强度影响因素[J]. 无机材料学报, 2011, 26(9): 944-948.
[5]刘有智, 石国亮, 郭雨, 等. 新型多孔碳化硅陶瓷膜管的制备与性能表征[J]. 膜科学与技术, 2007, 27(1): 32-34.
[6]Isobe T, Ooyama A, Shimizu M, et al. Pore size control of Al2O3 ceramics using two-step sintering[J]. Ceramics International, 2012, 38(1): 787-793.
[7]张锐, 高濂, 程国锋, 等. 注浆成型SiC多孔陶瓷的工艺和性能研究[J]. 无机材料学报, 2002, 17(4): 725-730.
[8]Zhou Y, Fukushima M, Miyazaki H, et al. Preparation and characterization of tubular porous silicon carbide membrane supports[J]. Journal of Membrane Science, 2011, 369(1-2): 112-118.
[9]Park J K, Lee J S, Lee S I. preparation of porous cordierite using gelcasting method and its feasibility as a filter[J]. Journal of Porous Materials, 2002, 9(3): 203-210.
[10]Yi Z Z, Xie Z P, Huang Y, et al. Study on gelcasting and properties of recrystallized silicon carbide[J]. Ceramics International, 2002, 28(4): 369-376.
[11]Omatete O O, Janney M A, Strehlow R A, et al. Gelcasting-a new ceramic forming process[J]. American Ceramic Society Bulletin, 1991, 7(10): 1641-1649.
[12]Young A C, Omatete O O, Janney M A, et al. Gelcasting of alumina[J]. Journal of the American Ceramic Society, 1991, 74(3): 612–618.
[13]Gilissen R, Erauw J P, Smolders A, et al. Gelcasting, a near net shape technique[J]. Materials & Design, 2000, 21(4):251-257.
[14]Vandeperre L J, De Wilde A M, Luyten J. Gelatin gelcasting of ceramic components[J]. Journal of Materials Processing Technology, 2003, 135(2-3): 312-316.
[15]Yang J L, Yu J L, Huang Y. Recent developments in gelcasting of ceramics[J]. Journal of the European Ceramic Society, 2011, 31(14): 2569-2591.
[16]沈云进. 氧化铝/碳化硅陶瓷复合膜的制备与性能考察[D]. 南京: 南京工业大学, 2012.
[17]Zhang T, Zhang Z Q, Jiang D L, et al. Preparation of SiC ceramics by aqueous gelcasting and pressureless sintering[J]. Materials Science & Engineering A, 2007, 43(1-2): 257-261.
[18]Ding S Q, Zeng Y P, Jiang D L. In-situ reaction bonding of porous SiC ceramics[J]. Materials Characterization, 2008, 59(2): 140-143.
[19]Kumar M, Eom J H, Kim Y W, et al. Effect of aluminum hydroxide content on porosity and strength of porous mullite-bonded silicon carbide ceramics[J]. Journal of the Ceramic Society of Japan, 2011, 119(5): 367-370.
[20]董应超. 新型低成本多孔陶瓷分离膜的制备与性能研究[D]. 合肥: 中国科学技术大学, 2008.

Service：

【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com