標題: SINTERING BEHAVIOR AND DIELECTRIC CHARACTERISTICS OF LITAO3 WITH THE ADDITION OF (MG2+TIO2)
作者: CHIOU, BS
LIN, TY
DUH, JG
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 1-May-1991
摘要: Densified LiTaO3-type ceramics can be obtained by sintering at 900-degrees-C after the addition of MgF2 or (MgF2 + LiF) mixture. Partial hydrolysis of MgF2 produces an MgO layer on top of the sample. Space charge polarization occurs at high temperatures between the MgO layer and the LiTaO3 matrix, inducing a large dielectric constant predominating over the ferroelectric Curie peak of the sample. The TiO2 dopant lowers the Curie temperature of the sample as the cation concentration increases. In addition, it is observed that substitution of Ta ions with Mg ions results in the formation of Ta2O5.
URI: http://hdl.handle.net/11536/3801
ISSN: 0254-0584
期刊: MATERIALS CHEMISTRY AND PHYSICS
Volume: 28
Issue: 1
起始頁: 51
結束頁: 68
Appears in Collections:Articles