硅酸盐学报2012，Vol.40Issue(6)：844-850,7.
活性炭掺杂对多孔氧化铝陶瓷支撑体结构及性能的影响
Effect of Activated Carbon Doping on Structure and Property of Porous Alumina Support
摘要
Abstract
Disk porous alumina supports were fabricated by dry-pressing method using u-Al2O3 powder (with average particle size of 4 μm) as raw materials, together with activated carbon as pore-forming agent. Effect of activated carbon doping on structures and proper- ties of porous alumina support was investigated. The oxidation reaction of activated carbon during high temperature sintering process could greatly increase the porosity and, hence, resulted in high permeability of porous alumina support. The porosity, average pore size, three point bending strength and pure water flux of the alumina support with 17% (mass fraction) activated carbon dopant sintered at 1450 ℃ were 45.8%, 2.1 μm, 44.6 MPa and 88 ma/(m^2·h·MPa), respectively. The three point bending strength of the support remained at 23.4 MPa even after immersed in 10% NaOH (80 ℃) for 20 d, indicating a comparatively good corrosion resistance to alkali solutions.关键词
陶瓷膜/支撑体/氧化铝/多孔陶瓷/活性炭Key words
ceramic membrane/support/alumina/porous ceramics activated carbon分类
化学化工引用本文复制引用
董国祥,漆虹,徐南平..活性炭掺杂对多孔氧化铝陶瓷支撑体结构及性能的影响[J].硅酸盐学报,2012,40(6):844-850,7.基金项目
国家自然科学基金青年基金 （）
材料化学工程国家重点实验室自主课题 （）
江苏省高校自然科学研究计划（11KJB530006）及江苏省“六大人才高峰”资助项目. （）
