Dispersion of barium ferrite particles for slip casting in magnetic field

Jing Long Li; Saburo Sano; Akihiro Tsuzuki; Akihiro Gotou; Yasuo Shibasaki; Fu Sheng Zhang; Jiang Tao Xiong; Yong Zhang; Tie Jun Ma

Dispersion of barium ferrite particles for slip casting in magnetic field

Jing Long Li
, Saburo Sano
, Akihiro Tsuzuki
, Akihiro Gotou
, Yasuo Shibasaki
, Fu Sheng Zhang
, Jiang Tao Xiong
, Yong Zhang
, Tie Jun Ma

School of Materials Sience and Engineering

National Institute of Advanced Industrial Science and Technology
Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Water-based slurries containing barium ferrite particles have been prepared and slip cast in magnetic field. This paper presents the characteristics of the suspensions in terms of Iso-Electric Points (IEP) and zeta potential that were evaluated through pH titration and polymer adsorption. Both enlarging the specific surface area of particles by planetary milling and adjusting the pH to low value apparently increase the zeta potentials. Stable slurry was obtained by adding polyethylene glycol (PEG) into the suspension at pH = 2∼3.5. The steric repulsion plays key role in dispersion and PEG films served as insulative layers and mechanically kept particles from contact each other. The barium ferrite particles formed many stacks of plates during slip casting, which either aligned randomly without magnetic field applied or regularly aligned to form textured structure when magnetic field was applied.

Original language	English
Pages (from-to)	143-146
Number of pages	4
Journal	Key Engineering Materials
Volume	317-318
State	Published - 2006

Keywords

Barium Ferrite
Steric Repulsion
Viscosity
Zeta Potential

Cite this

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title = "Dispersion of barium ferrite particles for slip casting in magnetic field",

abstract = "Water-based slurries containing barium ferrite particles have been prepared and slip cast in magnetic field. This paper presents the characteristics of the suspensions in terms of Iso-Electric Points (IEP) and zeta potential that were evaluated through pH titration and polymer adsorption. Both enlarging the specific surface area of particles by planetary milling and adjusting the pH to low value apparently increase the zeta potentials. Stable slurry was obtained by adding polyethylene glycol (PEG) into the suspension at pH = 2∼3.5. The steric repulsion plays key role in dispersion and PEG films served as insulative layers and mechanically kept particles from contact each other. The barium ferrite particles formed many stacks of plates during slip casting, which either aligned randomly without magnetic field applied or regularly aligned to form textured structure when magnetic field was applied.",

keywords = "Barium Ferrite, Steric Repulsion, Viscosity, Zeta Potential",

author = "Li, \{Jing Long\} and Saburo Sano and Akihiro Tsuzuki and Akihiro Gotou and Yasuo Shibasaki and Zhang, \{Fu Sheng\} and Xiong, \{Jiang Tao\} and Yong Zhang and Ma, \{Tie Jun\}",

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journal = "Key Engineering Materials",

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T1 - Dispersion of barium ferrite particles for slip casting in magnetic field

AU - Li, Jing Long

AU - Sano, Saburo

AU - Tsuzuki, Akihiro

AU - Gotou, Akihiro

AU - Shibasaki, Yasuo

AU - Zhang, Fu Sheng

AU - Xiong, Jiang Tao

AU - Zhang, Yong

AU - Ma, Tie Jun

PY - 2006

Y1 - 2006

N2 - Water-based slurries containing barium ferrite particles have been prepared and slip cast in magnetic field. This paper presents the characteristics of the suspensions in terms of Iso-Electric Points (IEP) and zeta potential that were evaluated through pH titration and polymer adsorption. Both enlarging the specific surface area of particles by planetary milling and adjusting the pH to low value apparently increase the zeta potentials. Stable slurry was obtained by adding polyethylene glycol (PEG) into the suspension at pH = 2∼3.5. The steric repulsion plays key role in dispersion and PEG films served as insulative layers and mechanically kept particles from contact each other. The barium ferrite particles formed many stacks of plates during slip casting, which either aligned randomly without magnetic field applied or regularly aligned to form textured structure when magnetic field was applied.

AB - Water-based slurries containing barium ferrite particles have been prepared and slip cast in magnetic field. This paper presents the characteristics of the suspensions in terms of Iso-Electric Points (IEP) and zeta potential that were evaluated through pH titration and polymer adsorption. Both enlarging the specific surface area of particles by planetary milling and adjusting the pH to low value apparently increase the zeta potentials. Stable slurry was obtained by adding polyethylene glycol (PEG) into the suspension at pH = 2∼3.5. The steric repulsion plays key role in dispersion and PEG films served as insulative layers and mechanically kept particles from contact each other. The barium ferrite particles formed many stacks of plates during slip casting, which either aligned randomly without magnetic field applied or regularly aligned to form textured structure when magnetic field was applied.

KW - Barium Ferrite

KW - Steric Repulsion

KW - Viscosity

KW - Zeta Potential

UR - https://www.scopus.com/pages/publications/33746039249

M3 - 文章

AN - SCOPUS:33746039249

SN - 1013-9826

VL - 317-318

SP - 143

EP - 146

JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

Dispersion of barium ferrite particles for slip casting in magnetic field

Abstract

Keywords

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