Analysis of uniaxial alignment behavior of nonmagnetic materials under static magnetic field with rotation

• Akiyama Jun

  Institute for Molecular Science

• Asano Hidefumi

  Department of Crystalline Materials Science, Nagoya University

• Iwai Kazuhiko

  Department of Materials, Physics and Energy Engineering, Nagoya University

• Asai Shigeo

  Innovation Plaza Tokai Japan Science and Technology Agency

書誌事項

タイトル別名

• Analysis of Uniaxial Alignment Behavior of Nonmagnetic Materials under Static Magnetic Field with Sample Rotation

抄録

A high magnetic field is a useful tool to control the crystal alignment of nonmagnetic materials such as metals, ceramics and polymers. However, the uniaxial alignment of hexagonal crystals with a magnetic susceptibility of χ_c<χ_a cannot be achieved under a static magnetic field, because the c-axis could lie along any arbitrary direction in the plane perpendicular to the direction of the magnetic field. For the uniaxial alignment of these materials, the imposition of a rotating magnetic field during a slip casting process has been proposed.<BR>In this study, both theoretical analysis and model experiment have been conducted for the elucidation of the crystal alignment phenomena under a rotating magnetic field and for the quantitative clarification of the optimum operating parameters such as magnetic field strength and viscosity of the medium surrounding the crystals. It has been found that the alignment time decreased with the magnetic field strength and/or with an increase in the viscosity of the surrounding medium. This relation is in contrary to the case of the crystal alignment under the static magnetic field. The result of the model experiment agrees well with that obtained by the theoretical analysis.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 49 (4), 787-791, 2008

  公益社団法人 日本金属学会

キーワード

• electromagnetic processing of materials
• crystal alignment
• rotating magnetic field
• magnetic anisotropy

詳細情報

• CRID: 1390001204251059840
• NII論文ID: 10021145822
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.mra2007326
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 9447410
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9447410
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/49/4/49_MRA2007326/_pdf
• 本文言語コード: en
• データソース種別:
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