DIELECTRIC PROPERTIES OF KTN FERROELECTRIC CERAMICS SINTERED WITH LiF

被引：35

作者：

Khemakhem, H. ^{[1
,2
]}

Ravez, J. ^{[1
]}

Daoud, A. ^{[2
]}

机构：

[1] Inst Chim Matiere Condensee Bordeaux, F-33608 Pessac, France

[2] ENIS, Lab Etat Solide LES, Sfax 3038, Tunisia

来源：

FERROELECTRICS | 1996年 / 188卷

关键词：

Ferroelectrics; KTN; ceramics; LiF additive; dielectric properties;

D O I：

10.1080/00150199608244878

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ceramics of the two compositions of KTa(1-x)Nb(x)O(3) (KTN) with x = 0.3 and 0.4 have been densified thanks to the addition of LiF. Densities been determined as a function of sintering temperature, time and amount of LiF. Dielectric investigations have shown that the composition corresponding to x = 0.4 is more densified than x = 0.3. The two compositions x = 0.3 and x = 0.4 exhibit a paraelectric-ferroelectric phase transition at about 310 and 360 K respectively. The phase transition is more diffuse for x = 0.3. Oxygen is partially substituted for fluorine in the crystalline network.

引用

页码：41 / 51

页数：11

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