Synthesis and Characterization of (1-x)BaTiO3-xBaF2-xLiF Ceramics

被引：2

作者：

Talantikite-Touati, D. ^{[1
]}

Benziada, L. ^{[2
]}

机构：

[1] Abderrahmane Mira Univ, Dept Chem, Bejaia, Algeria

[2] USTHB, Fac Chem, Algiers, Algeria

来源：

FERROELECTRICS | 2012年 / 429卷

关键词：

Perovskite; New oxyfluoride phases; Powder; XRD; SEM; DOPED BATIO3 CERAMICS; ELECTRICAL-PROPERTIES;

D O I：

10.1080/00150193.2012.676978

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Oxyfluoride phases have been synthesized in free atmosphere at 950 degrees C during 4 hours, using the BaTiO3 perovskite and the fluorides BaF2 and LiF. The XRD study at room temperature on powder, for various compositions has shown the formation of a new solid solution (1-x)BaTiO3-xBaF(2)-xLiF in the range 0 < x <= 0.15. Furthermore the XRD analysis indicates the transition of crystalline type from tetragonal to cubic symmetry from the composition x = 0.035. This result can be attributed to the decrease of the covalency bonds in the BX6. An electric measurement have showed a PTCR behavior for two compositions, 0.90BaTiO(3)-0.10BaF(2)-0.10LiF and 0.85BaTiO(3)-0.15BaF(2)-0.15LiF.

引用

页码：116 / 122

页数：7

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