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锶掺杂对钛酸镧钡陶瓷结构相变和拉曼电荷效应的影响

Effect of Sr doping on Structural and Raman Charge properties of (Ba_(0.97)La_(0.03)Ti_(0.9925)O_3 Ceramics
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摘要 采用X射线衍射(XRD)和拉曼光谱(RS)技术调查了(Ba0.97-x La0.03Sr x)Ti0.9925O3(x=0.015-0.2)陶瓷的结构特征.结果表明:当x≤0.1时,晶体维持在四方结构,当Sr含量增加到0.2时,晶体由四方相变为伪立方相.伴随着结构相变,Sr掺杂对(Ba0.97La0.03)Ti0.9925O3陶瓷的拉曼电荷效应产生影响. （Ba0.97La0.03） Ti0.9925O3（ x= 0. 03 -- 0. 2 ） ceramics are investigated by （ XRD ） and Raman spectroscopy （RS）. The result shows that when x≤0.1 ,crystal structure remains to be tetragonal phase,as Sr dopant increases to 0.2, the crystal structure shifts from tetragonal to persudo cubic phase. With the phase transformation,the Raman charge effect of （Ba0.97La0.03） Ti0.9925O3 ceramics is affected by Sr dopant heavily.
作者 岳洋 路大勇
机构地区 吉林化工学院材料科学与工程学院
出处 《吉林化工学院学报》 CAS 2013年第9期42-44,共3页 Journal of Jilin Institute of Chemical Technology
基金 吉林省科技发展计划项目(20110710) 吉林省创新团队项目(20121825)
关键词 钛酸钡陶瓷 XRD 拉曼光谱 拉曼电荷效应 barium titanate ceramics XRD raman spectrum raman charge effect
分类号 O614.23 [理学—无机化学]
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吉林化工学院学报
2013年 第9期

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