陶瓷Issue(5)：13-18,6.
以TiO2-MgO-MnO2为烧结助剂挤压成形低温烧结α-Al2O3陶瓷膜支撑体
Low Temperature Sintering of Alumina Ceramic Support with TiO2-MgO-MnO2 Multiphase Sintering Additive
摘要
Abstract
In this experiment,single-tube α-Al2O3 ceramic support body was prepared at the temperature of 1 300 ℃ assisted by TiO2-MgO-MnO2 multiphase sintering additive using extrusion molding and sintering the solid particles.We studied the effect of TiO2-MgO-MnO2 multiphase sintering additive on the properties of α-Al2O3 ceramic support.In the case of adding 3％TiO2,1.5％MnO2,and we compared the effects of adding different mass fraction of MgO and its content on the properties of α-A12O3 ceramic support.The microstructure,phase composition,mechanical strength,acidand alkali corrosion resistant,porosity and pure water flux of samples were characterized by SEM,XRD,three point bending method,mass loss method,liquid static weighing method and homemade device for pure water flux.The results showed that the multiphase sintering additive could effectively promote the alumina ceramic sintering.And when sintering temperature was 1 300 ℃,the sintering effect of alumina ceramic support with adding 3％TiO2,1.5％MnO2,0.5％MgO was best.And the sintered alumina ceramic support had a uniformly crystal distribution.The bending strength was 77.63 MPa,the porosity of prepared sample was 35.71％,the pure water flux was 6 741.53 L/m2 · h · MPa,and acid/base corrosion weight loss rate was 1.02％/0.99％.关键词
α-Al2O3陶瓷膜支撑体/挤压成形工艺/固态粒子烧结法/TiO2-MgO-MnO2复相燃烧助剂Key words
α-Al2O3 ceramic membrane support/Extrusion molding/The solid particle sintering method/TiO2-MgO-MnO2 multiphase combustion promoter分类
资源环境引用本文复制引用
陈安康,同帜,王丹,霍乐乐..以TiO2-MgO-MnO2为烧结助剂挤压成形低温烧结α-Al2O3陶瓷膜支撑体[J].陶瓷,2017,(5):13-18,6.基金项目
国家自然科学基金资助项目(项目编号:21103132) （项目编号:21103132）
陕西省科技厅科技统筹项目(项目编号:2013KTCQ03～20). （项目编号:2013KTCQ03～20）
