Preparation of barium titanate powders and colloidal processing in a strong (9.4 T) magnetic field

被引：9

作者：

Ozen, Murat ^{[1
]}

Mertens, Myrjam ^{[2
]}

Schroeven, Mario ^{[2
]}

Snijkers, Frans ^{[2
]}

Cool, Pegie ^{[1
]}

机构：

[1] Univ Antwerpen UA, Dept Chem, Lab Adsorpt & Catalysis, B-2610 Antwerp, Belgium

[2] Flemish Inst Technol Res VITO NV, B-2400 Mol, Belgium

来源：

MATERIALS LETTERS | 2012年 / 67卷 / 01期

关键词：

Ceramics; Cast; Colloidal processing; Electron microscopy; Texture; X-ray techniques;

D O I：

10.1016/j.matlet.2011.09.071

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydrothermally prepared BaTiO3 powders were tested inside a 9.4 T magnet. 5 vol.% and 15 vol.% BaTiO3 suspensions were slip casted inside a 9.4 T magnet and the sintered (1400 degrees C) compacts were XRD analysed. Texture degrees of 0.25 and 0.43 were calculated according to the lotgering method. 15 vol.% suspensions did not yield texture. High powder loadings may give colloidally stable suspensions with low viscosities. However, agglomerates inhibit the rotational freedom of individual particles in the strong magnetic field which resulted in not or weakly textured BaTiO3 at 15 vol.%. 2011 Elsevier B.V. All rights reserved.

引用

页码：154 / 157

页数：4

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