弛豫型铁电陶瓷(1-x)Pb(Sc_(1/2)Ta_(1/2))O_3-xPbTiO_3研究进展  

The Progress in Research on Relaxor Ferroelectric Ceramics ((1-x)Pb(Sc_(1/2)Ta_(1/2))O_3-xPbTiO_3

作　　者：曹健[1] 朱建国[1] 熊学斌[1] 乐夕[1] 肖定全[1] 

机构地区：[1]四川大学材料科学系,成都610064

出　　处：《压电与声光》2003年第5期382-385,395,共5页Piezoelectrics & Acoustooptics

基　　金：国家自然科学重点基金(50132020);国家自然科学基金(10175045)

摘　　要：钽钪酸铅陶瓷具有优良的介电、压电和铁电性能,但烧成温度高、居里点较低。为降低钽钪酸铅陶瓷的烧结温度并提高其居里点,人们合成了钽钪酸铅-钛酸铅(简称PSTT)材料体系。该文综述了弛豫型铁电陶瓷PSTT体系在相图与结构、制备和性能等方面的研究进展,探索了一种合成PSTT陶瓷新工艺,介绍了PSTT材料体系的重要应用领域。Lead scandium tantalate ceramics exhibit excellent dielectric, piezoelectric, and ferroelectric properties, but need rather higher sintering temperature and possess lower Curie temperature. In order to lower Pb(Sc1/2 Ta1/2)O3 ceramics sintering temperature and raise Curie temperature, lead scandium tantalate-lead titanate system (abbr. as PSTT ) is synthesized. This paper summarizes the progress in research on phase diagram and structure, preparation,and properties of relaxor ferroelectric ceramics PSTT system. A new synthesis method of PSTT is proposed. And the important application fields of this system are introduced.

关 键 词：弛豫型铁电陶瓷 (1-x)Pb(Sc1/2Ta1/2)O31-xPbTiO3 钙钛矿 

分 类 号：TM224[一般工业技术—材料科学与工程] TB321[电气工程—电工理论与新技术]