Orientation Control of Hematite via Transformation of Textured Goethite Prepared by EPD in a Strong Magnetic Field

Tetsuo Uchikoshi; Tohru Suzuki; Yoshio Sakka

doi:10.4028/www.scientific.net/KEM.507.227

Paper Titles

Examples of EPD Process Applications in the Electronic Industry and their Characteristics
p.181

Mechanical and Tribological Properties of Al₂O₃-ZrO₂ Based Composites Prepared by EPD
p.191

Fly Ash/Rare Earth Oxide Coatings by EPD: Processing and Characterization
p.197

Stability and EPD of Concentrated Suspensions of Alumina with Nanosized Titania
p.203

Control of Electrophoretic Deposition Kinetics for Preparation of Laminated Alumina/Zirconia Ceramic Composites
p.209

Preparation of Perovskite-Type Oxide Thick-Film Device by EPD Method and its Application for Electrochemical Hydrogen-Phosphate Ion Sensor
p.215

Development of Internal Stresses in Alumina-Zirconia Laminates
p.221

Orientation Control of Hematite via Transformation of Textured Goethite Prepared by EPD in a Strong Magnetic Field
p.227

Characterization of a Ceramic Powder Surface by Contact Angle Measurements and Infrared Spectroscopy
p.233

HomeKey Engineering MaterialsKey Engineering Materials Vol. 507Orientation Control of Hematite via Transformation...

Orientation Control of Hematite via Transformation of Textured Goethite Prepared by EPD in a Strong Magnetic Field

Abstract:

Fabrication of textured hematite was achieved from paramagnetic goethite by electrophoretic deposition in a strong magnetic field followed by thermal treatment via topotactic phase transformation. The textured microstructure of the hematite was characterized by XRD and SEM observations. It was confirmed that the a,b-axes of the goethite were taken over the c-axis of the hematite through the topotactic phase transformation The magnetization vs magnetic field measurement using a VSM revealed that the textured hematite showed an anisotropic magnetic property depending on the direction of the crystalline orientation.

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Key Engineering Materials (Volume 507)

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227-231

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.507.227

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Online since:

March 2012

Authors:

Tetsuo Uchikoshi, Tohru Suzuki, Yoshio Sakka

Keywords:

Goethite, Hematite, Magnetic Field, Texture, Topotactic Phase Transformation

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