西华师范大学学报:自然科学版
西華師範大學學報:自然科學版
서화사범대학학보:자연과학판
Journal of China West Normal University:Natural Science Edition
2012年
4期
382-385,402
,共5页
张林慧%廖运文%刘育芳%李伟%姜宁%王文芳
張林慧%廖運文%劉育芳%李偉%薑寧%王文芳
장림혜%료운문%류육방%리위%강저%왕문방
多孔陶瓷%造孔剂%结构和性能
多孔陶瓷%造孔劑%結構和性能
다공도자%조공제%결구화성능
porous ceramics%porogens%structure and properties
以葡萄糖为造孔剂制备了新型的Bi0.5 (Na0.7 K0.2 Li0. 1 )0.5 TiO3无铅多孔压电陶瓷.研究了造孔剂含量对该多孔陶瓷的孔隙率的影响,并利用XRD,SEM等测试技术表征了该多孔陶瓷晶体结构、表面形貌和介电压电性能.研究结果表明,在所研究的加入造孔剂范围内,多孔陶瓷形成纯的钙钛矿固溶体,其孔隙率随葡萄糖加入量的增加而增加,最高达40.5%,而压电性能和介电性能急剧降低.
以葡萄糖為造孔劑製備瞭新型的Bi0.5 (Na0.7 K0.2 Li0. 1 )0.5 TiO3無鉛多孔壓電陶瓷.研究瞭造孔劑含量對該多孔陶瓷的孔隙率的影響,併利用XRD,SEM等測試技術錶徵瞭該多孔陶瓷晶體結構、錶麵形貌和介電壓電性能.研究結果錶明,在所研究的加入造孔劑範圍內,多孔陶瓷形成純的鈣鈦礦固溶體,其孔隙率隨葡萄糖加入量的增加而增加,最高達40.5%,而壓電性能和介電性能急劇降低.
이포도당위조공제제비료신형적Bi0.5 (Na0.7 K0.2 Li0. 1 )0.5 TiO3무연다공압전도자.연구료조공제함량대해다공도자적공극솔적영향,병이용XRD,SEM등측시기술표정료해다공도자정체결구、표면형모화개전압전성능.연구결과표명,재소연구적가입조공제범위내,다공도자형성순적개태광고용체,기공극솔수포도당가입량적증가이증가,최고체40.5%,이압전성능화개전성능급극강저.
A porous lead-free ceramic was prepared with amylaceum for the porous agent. The influence of Bulk porosity to the porous lead-free ceramic by different mass fraction porogens was researched. The microstructure and shape were studied by x-ray diffraction, scanning electron microscope and the dielectric properties were measured by digital electron instruments. The X-ray diffraction patterns revealed that all ceramics investigated can form a pure perovskite phase at the different mass fuaction porogens addition. The bulk porosity of porous BNKLT ceramics was higher with more amylaceum,but the piezoelectric properties and dielectric properties sharply decreased.