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一种压电陶瓷降压变压器材料的研究
作者:尚勋忠 张源伟 周桃生 何云斌 柴荔英 邝安祥 
单位:湖北大学压电陶瓷技术研究所!武汉430062 湖北大学压电陶瓷技术研究所!武汉430062 湖北大学压电陶瓷技术研究所!武汉430062 湖北大学压电陶瓷技术研究所!武汉430062 湖北大学压电陶瓷技术研究所!武汉430062 湖北大学压电陶瓷技术研究所!武汉430062 
关键词:压电陶瓷  降压变压器材料  钛酸铅  改性  综合参数 
分类号:TQ174
出版年,卷(期):页码:2000,28(2):176-180
DOI:
摘要:
研制了一种新型的添加CaCO3,Bi(Cd1/2 Ti1/2 )O3,MnO2 的改性PbTiO3压电陶瓷材料 .从压电活性、压电各向异性、介电常数、介电损耗、机械品质因数及Curie点等综合参数看 ,该材料可用来开发压电陶瓷降压变压器 .实验确定其典型配方为Pb0 .73Ca0 .2 7TiO3+4 % (inmole)Bi(Cd1/2 Ti1/2 )O3+1 % (inmole)MnO2 ;在优化后的制备工艺条件下 ,其主要参数为 :εT33/ε0 =1 87,d33=60× 1 0 - 12 C·N- 1,Kt=0 .4 9,Kp=0 .0 52 ,Qm=560 ,tanδ=0 .7% ,θC=3 1 7℃ .
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A new modified PbTiO_3 piezoelectric ceramic material added with CaCO_3, Bi(Cd_~1/2Ti_~1/2)O_3,MnO_2 was prepared. Considering the synthetical parameters, such as piezoelectric activities, piezoelectric anisotropy, dielectric constant, mechanical quality factors and Curie temperature, this material is suitable for the preparation of piezoelectric ceramic step-down transformer. The typical composition of this material obtained from experiments is Pb_~0.73Ca_~0.27TiO_3+4%(in mole)Bi(Cd_~1/2Ti_~1/2)O_3+1%(in mole)MnO_2. Under the optimized preparation technique, its main parameters are εT_~33/ε_0=187, d_~33=60×10~-12 C·N~-1, K_t=0.49,K_p=0.052, Q_m=560, tanδ=~0.7%,~ θ_C=317 ℃.
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基金项目:
湖北省重点科研资助!项目 ( 951P0 3 0 3 )
作者简介:
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参考文献:
[1 ] OhnishiO ,KishieH ,IwamotoA ,etal.Piezoelectricceramictransformeroperatinginthicknessextensionalvibrationmodeforpowersupply [A].UltrasonicsSymposium [C].NewYork :IEEE ,1 992 .4 83— 4 88. [2 ] 尚勋忠 .压电陶瓷降压变压器及其材料 [J].湖北大学学报 (自然科学版 ) ,1 998,2 0 (增刊 ) :92— 95. [3 ] 周桃生 ,何云斌 ,尚勋忠 ,等 .一种新型改性PbTiO3压电陶瓷材料研究 [J].无机材料学报 ,1 998,1 3 ( 4) :4 84— 4 90 . [4 ] 黎步银 ,龚树萍 ,姜胜林 ,等 .高温高频用改性PbTiO3压电陶瓷材料研究 [J].压电与声光 ,1 997,1 9( 1 ) :57— 60 . [5] 汪 溶 ,阴其俊 ,包曼玲 .氧化镉掺杂对钛酸钡基陶瓷材料改性 [J].电子元件与材料 ,1 997,1 6( 3 ) :3 4— 3 6. [6] 姜胜林 ,王筱珍 ,张绪礼 .MnO2 对改性钛酸铅陶瓷压电性能的影响 [J].电子元件与材料 ,1 995,1 4 ( 1 ) :3 4— 3 6.
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