陕西科技大学学报（自然科学版）Issue(5)：54-57,4.
烧结温度对BaTiO3多孔陶瓷性能的影响
Effect of sintering temperature on the properties of porous BaTiO3 ceramics
摘要
Abstract
BaTiO3 porous ceramics with layered structure were prepared by water based freeze casting technology .The effect of sintering temperature on the microstructure ,shrinkage , porosity and dielectric properties of porous BaTiO3 was investigated and effect of kaolinite on sintering process was discussed .The results show that the shrinkage of sample with 4 wt%kaolinite content increased from 27% to 56% w hen temperature increased from 1 200 ℃ to 1 220 ℃ ,then porosity decreased from 78% to 56% .The shrinkage of sample with 8 wt%kaolinite content increased from 30% to 61% w hen temperature increased from 1 200 ℃ to 1 220 ℃ ,then porosity decreased from 72% to 39% .Kaolinite could decrease sintering tem-perature of porous ceramics .The pore size decreased and pore arrangement transformed from ordered structure to disordered structure with increase of sintering temperature .Porous ce-ramics with 8 wt% kaolinite content would obtain layered structure when sintering at 1 200℃ .The dielectric constant of sample was 130 when kaolinite addition was 4 wt% and sinte-ring at 1 220 ℃ .关键词
烧结温度/孔隙率/介电性能/多孔陶瓷Key words
sintering temperature/porosity/dielectric properties/porous ceramics引用本文复制引用
蒲永平,李品,董子靖..烧结温度对BaTiO3多孔陶瓷性能的影响[J].陕西科技大学学报（自然科学版）,2013,(5):54-57,4.基金项目
国家自然科学基金项目（51072106）；教育部“新世纪优秀人才支持计划”项目（NCET-11-1042）；陕西省科技厅国际科技合作项目（2012KW-06）；陕西省教育厅科研计划专项项目（12JK0447）；国家级大学生创新创业训练计划项目 （）
