Preparation and Properties of Liquid Crystal Based Magnetic Fluid.

• Fujita Toyohisa

  Mining College, Akita University

• Ito Ryoji

  Mining College, Akita University

• Wada Yasuhisa

  Mining College, Akita University

• Akagami Yoichi

  Akita Prefectural Industrial Technology Center

Bibliographic Information

Other Title

• 磁性流体　液晶ベース磁性流体の製造とその特性
• エキショウ ベース ジセイ リュウタイ ノ セイゾウ ト ソノ トクセイ

Abstract

The coprecipitated magnetite particles were coated by polyoxyethylene alkyl ether acetates. After the surfactant coated magnetite was washed by ethanol, they were well dispersed in nematic liquid crystal, that is, cyanobiphenyl type and phenylcyclohexane type liquid crystals. The saturation magnetization of prepared liquid crystal based magnetic fluid was 0.1 to 0.2 T. However, as decreasing the temperature of magnetic fluid, the phase separation appeared. Also this magnetic fluid showed the electrorheological effect, therefore, this fluid was considered as ER magnetic fluid. When the magnetic fluid was used in a cylindrical damper, the magnification factor at resonance point slightly decreased.

Journal

• Journal of the Japan Society of Powder and Powder Metallurgy

  Journal of the Japan Society of Powder and Powder Metallurgy 43 (6), 761-765, 1996

  Japan Society of Powder and Powder Metallurgy

Keywords

• Nematic liquid crystal
• Magnetic fluid
• ER fluid
• ER magnetic fluid
• Damper

Details

• CRID: 1390282681285263488
• NII Article ID: 10002012449
• NII Book ID: AN00222724
• DOI: 10.2497/jjspm.43.761
• ISSN: 18809014
• ISSN: 05328799
• NDL BIB ID: 3976297
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3976297
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed