六方晶U型フェライトBa₄Me₂Fe₃₆O₆₀ (Me = Co, Ni, Mg)の作製プロセスの確立および磁気特性

• Material Type: 記事
• Title: 六方晶U型フェライトBa₄Me₂Fe₃₆O₆₀ (Me = Co, Ni, Mg)の作製プロセスの確立および磁気特性
• Author/Editor: 佐々木 遼; 神島 謙二; 柿崎 浩一 他
• Author Heading: 佐々木 遼; 神島 謙二; 柿崎 浩一
• Alternative Title: Establishment of Preparation Process of Hexagonal U-type Ferrites Ba₄Me₂Fe₃₆O₆₀ (Me = Co, Ni, Mg) and Their Magnetic Properties
• Periodical title: 粉体および粉末冶金 = Journal of the Japan Society of Powder and Powder Metallurgy : 粉体粉末冶金協会誌 / 粉体粉末冶金協会 編
• No. or year of volume/issue: 59(3):2012.3
• Volume: 59
• Issue: 3
• Pages: 131-136
• Publication date of volume/issue (W3CDTF): 2012-03
• ISSN (Periodical Title): 0532-8799
• ISSN-L (Periodical Title): 0532-8799
• Publication (Periodical Title): 京都 : 粉体粉末冶金協会
• Place of Publication (Country Code): JP
• Text Language Code: jpn
• Subject Heading: hexagonal ferrite; U-type; crystal structure; magnetic property; preparation process
• NDLC: ZP41
• Target Audience: 一般
• Holding library: 国立国会図書館
• Call No.: Z17-274
• Data Provider (Database): 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• Bibliographic ID (NDL): 023617980; http://id.ndl.go.jp/bib/023617980
• Bibliographic Record Category (NDL): 632

• Summary, etc.: We have established the preparation process of hexagonal U-type ferrites Ba<SUB>4</SUB>Me<SUB>2</SUB>Fe<SUB>36</SUB>O<SUB>60</SUB> (Me=Co, Ni, Mg) and investigated their crystal structure and magnetic properties. The U-type ferrite single phase was not fabricated by using a conventional ceramic synthesis process which comprises two-steps: calcination and sintering. We have found that the U-type ferrites single phase can be obtained by a one-step sintering method that skips the calcination process. The single phase of the U-type ferrite was formed at a very narrow temperature at about 1250°C. The values of saturation magnetization and the Curie temperature of Co<SUB>2</SUB>U ferrite were higher than those of Co<SUB>2</SUB>Z ferrite. Initial permeability of Co<SUB>2</SUB>U ferrite has a higher value than those of Ni<SUB>2</SUB>U and Mg<SUB>2</SUB>U ferrites. The U-type ferrite has a great potential for high frequency magnetic materials.
• DOI: 10.2497/jjspm.59.131
• Access Restrictions: インターネット公開
• Data Provider (Database): 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp

• Summary, etc.: We have established the preparation process of hexagonal U-type ferrites Ba<SUB>4</SUB>Me<SUB>2</SUB>Fe<SUB>36</SUB>O<SUB>60</SUB> (Me=Co, Ni, Mg) and investigated their crystal structure and magnetic properties. The U-type ferrite single phase was not fabricated by using a conventional ceramic synthesis process which comprises two-steps: calcination and sintering. We have found that the U-type ferrites single phase can be obtained by a one-step sintering method that skips the calcination process. The single phase of the U-type ferrite was formed at a very narrow temperature at about 1250°C. The values of saturation magnetization and the Curie temperature of Co<SUB>2</SUB>U ferrite were higher than those of Co<SUB>2</SUB>Z ferrite. Initial permeability of Co<SUB>2</SUB>U ferrite has a higher value than those of Ni<SUB>2</SUB>U and Mg<SUB>2</SUB>U ferrites. The U-type ferrite has a great potential for high frequency magnetic materials.
• DOI: 10.2497/jjspm.59.131; https://doi.org/10.2497/jjspm.59.131
• Related Material (URI): http://id.ndl.go.jp/bib/023617980; https://ndlsearch.ndl.go.jp/books/R000000004-I023617980
• Is Referenced By: Synthesis of a new U-type hexaferrite Ba₄Cu₂Fe₃₆O₆₀; https://cir.nii.ac.jp/crid/1390282680488894720
• References: Growth and Properties of Single Crystals of Hexagonal Ferrites; https://cir.nii.ac.jp/crid/1360855568824624512
• Data Provider (Database): 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• Original Data Provider (Database): Japan Link Center; https://japanlinkcenter.org/top; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; Crossref; https://www.crossref.org; CiNii Articles
• Bibliographic ID (NDL): 023617980; http://id.ndl.go.jp/bib/023617980
• NAID: 10030479948