Development of Functional Ceramics by Colloidal Processing in Rotating High Magnetic Field

Recently to improve properties, highly microstructure controlled ceramics such as fine-grained, textured and laminated structures are required. We have demonstrated a new processing of textured ceramics with a feeble magnetic susceptibility by colloidal processing in a high magnetic field and subsequent heating. As colloidal processing, slip casting and electrophoretic deposition (EPD) have been conducted successfully. Colloidal processing is known to be a powerful method for consolidating fine particles with a high density and homogeneous microstructure. The degree of orientation strongly depends on the particle dispersion and some processing factors, such as particle size, applied magnetic field, concentration of the suspension, sintering temperature, etc. Crystalline-textured controlled laminated composites can be fabricated using EPD by varying the angle between the vectors of electric field and magnetic field. Also textured ceramics with complicated structure can be fabricated by reaction sintering. The colloidal processing in a high magnetic field confers several advantages and it is possible for this type of processing to be applied to non-cubic ceramics, such as alumina, titania, zinc oxide, tin oxide, hydroxy apatite, aluminium nitride, silicon carbide, silicon nitride, etc. The textured ceramics showed anisotropic properties depending on the crystal plane.

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Crystal-oriented (Bi0.5, Na0.5)0.85–Ba0.15TiO3 ceramics prepared by colloidal processing in rotating high magnetic field

Journal of the Ceramic Society of Japan ◽

10.2109/jcersj2.123.340 ◽

2015 ◽

Vol 123 (1437) ◽

pp. 340-344 ◽

Cited By ~ 6

Author(s):

Satoshi TANAKA ◽

Keisuke SANO ◽

Mitsuru IMAI ◽

Keizo UEMATSU ◽

Tomohiro HARADA ◽

...

Keyword(s):

Magnetic Field ◽

High Magnetic Field ◽

Colloidal Processing

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Textured Development of Feeble Magnetic Ceramics by Colloidal Processing Under High Magnetic Field

Journal of the Ceramic Society of Japan ◽

10.2109/jcersj.113.26 ◽

2005 ◽

Vol 113 (1313) ◽

pp. 26-36 ◽

Cited By ~ 193

Author(s):

Yoshio SAKKA ◽

Tohru S. SUZUKI

Keyword(s):

Magnetic Field ◽

High Magnetic Field ◽

Colloidal Processing ◽

Magnetic Ceramics

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New Processing of Textured Ceramics by Colloidal Processing Under High Magnetic Field

High-Performance Ceramics III - Key Engineering Materials ◽

10.4028/0-87849-959-8.721 ◽

2007 ◽

pp. 721-728

Author(s):

Yoshio Sakka ◽

Tohru S. Suzuki

Keyword(s):

Magnetic Field ◽

High Magnetic Field ◽

Colloidal Processing ◽

Textured Ceramics ◽

New Processing

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Colloidal processing using UV curable resin under high magnetic field for textured ceramics

Journal of the European Ceramic Society ◽

10.1016/j.jeurceramsoc.2016.04.002 ◽

2016 ◽

Vol 36 (11) ◽

pp. 2739-2743 ◽

Cited By ~ 8

Author(s):

Shoko Baba ◽

Tomohiro Harada ◽

Hiroyuki Shimizu ◽

Yutaka Doshida ◽

Satoshi Tanaka

Keyword(s):

Magnetic Field ◽

High Magnetic Field ◽

Colloidal Processing ◽

Uv Curable ◽

Textured Ceramics ◽

Uv Curable Resin

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Fabrication of Highly Microstructure Controlled Ceramics by Novel Colloidal Processing

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.336-338.2372 ◽

2007 ◽

Vol 336-338 ◽

pp. 2372-2377

Author(s):

Yoshio Sakka ◽

Tetsuo Uchikoshi ◽

Tohru Suzuki

Keyword(s):

Magnetic Field ◽

Magnetic Susceptibility ◽

Pore Size ◽

High Magnetic Field ◽

Electrophoretic Deposition ◽

Porous Ceramics ◽

Colloidal Processing ◽

Textured Ceramics

Highly structure controlled ceramics were required for improving their properties. Here, we demonstrate such ceramics fabricated by novel colloidal processing; (i) dense nano-sized zirconia without pressure sintering, (ii) porous ceramics with controlled pore size by hetero-coagulated suspension of ceramics and polymer, and (iii) textured ceramics with feeble magnetic susceptibility by electrophoretic deposition in a high magnetic field.

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