Gas Phase Preparation and Property of the Nitride Fine Particles in the Rare Earth-Iron System

• Project/Area Number: 04453073
• Research Category: Grant-in-Aid for General Scientific Research (B)
• Allocation Type: Single-year Grants
• Research Field: 無機工業化学・無機材料工学
• Research Institution: Osaka University
• Principal Investigator: ADACHI Gin-ya Osaka Univ., Dept.of Appl.Chem., Professor, 工学部, 教授 (60029080)
• Co-Investigator(Kenkyū-buntansha): SAKAGUCHI Hiroki Osaka Univ., Dept.of Appl.Chem., Instructor, 工学部, 助手 (00202086) ; IMANAKA Nobuhito Osaka Univ., Dept.of Appl.Chem., Instructor, 工学部, 助手 (30192503) ; MACHIDA Ken-ichi Osaka Univ., Dept.of Appl.Chem., Associ.Prof., 工学部, 助教授 (00157223)
• Project Period (FY): 1992 – 1993
• Project Status: Completed (Fiscal Year 1993)
• Budget Amount: ¥8,100,000 (Direct Cost: ¥8,100,000); Fiscal Year 1993: ¥1,100,000 (Direct Cost: ¥1,100,000); Fiscal Year 1992: ¥7,000,000 (Direct Cost: ¥7,000,000)
• Keywords: Vapor Complexes / Fine Particles / Metal Halides / Metal Nitrides / Nitriding / Intermetallic Compounds / Magnetism / Vapor Transport Method / 金属リライド / 希土類化合物 / 窒化物微粒子 / 気相錯体 / 気相反応 / 磁性材料

Research Abstract

The present work purposes to prepare the Sm_2Fe_<17>N_X and Sm_2Fe_<17>C_xN_y magnet fine particles with an excellent magnetic property via the reactions between the vapor complexes of samarium-iron chloride and NH_3 or CH_4. The research term was 2 years, and last year (in 1992) we found that the nitride fine particles in the Sm-Fe system were partially produced by the thermal decomposition of Sm_mFe_nCl_<3(m+n)> vapor complexes in a NH_3-H_2 mixed gas. In this year, the carbide fine particles in the Sm-Fe system prepared in addition to the nitride fine particles above-mentioned, and the possibility of the preparation process for the Sm_2Fe_<17>N_X or Sm_2Fe_<17>C_xN_y magnet materials was studied by using the resulting fine particles as the raw materials.

Research Products

• [Publications] Kuniaki Murase: "Rare Earth Separation using a Chemical Vapor Transport Process Mediated by Vapor Complexes of the LnCl_3-AlCl_3 System" Journal of Alloys and Compounds. 198. 31-38 (1993)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Hirokazu Izumi: "Synthesis of Sm_2Fe_<17>Cx via the Arc Melting of Sm,SmC_2,and Fe" Chemistry Letters. 1903-1906 (1993)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 町田 憲一: "希土類炭化物を経由するSm-Fe-C-N系化合物の合成" 希土類. NO.22. (1993)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Kuniaki Murase: "Recovery of Rare Metals from Scrap of Rare Earth Intermetallic Material by a Chemical Vapor Transport" 発表予定.
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Hirokazu Izumi: "Synthesis and Magnetic Properties of Sm_2Fe_<17>CxNy using SmC_2 as a Starting Material" 発表予定.
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Kuniaki Murase, Kiyoshi Shinozaki, Yoshiyuki Hirashima, Ken-ichi Machida, and Gin-ya Adachi: ""Rare Earth Separation using a Chemical Vapor Transport Process Mediated by Vapor Complexes of the LnCl_3-AlCl_3 System"" J.Alloys Comp.198. 31-38 (1993)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Hirokazu Izumi, Ken-ichi Machida, Daisuke Otsuka, and Gin-ya Adachi: ""Synthesis of Sm_2Fe_<17>C_x via the Arc Melting of Sm, SmC_2, and Fe"" Chem.Lett.1903-1906 (1993)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Kuniaki Murase: "Rare Earth Separation using a Chemical Vapor Transport Process Mediated by Vapour Complexes of the LnCl_3-AlCl_3 System" Journal of Alloys and Compounds. 198. 31-38 (1993)
• [Publications] Hirokazu Izumi: "Synthesis of Sm_2Fe_<17>C_x via the Arc Melting of Sm,SmC_2,and Fe" Chemistry Letters. 1903-1906 (1993)
• [Publications] 町田憲一: "希土類炭化物を経由するSm-Fe-C-N系化合物" 希土類. No.22. 72-73 (1993)
• [Publications] Kuniaki Murase: "Recovery of Rare Metals from Scrap of Rare Earth Intermetallic Material by a Chemical Vapor Transport" (発表予定).
• [Publications] Hirokazu Izumi: "Synthesis and Magnetic Properties of Sm_2Fe_<17>C_xN_y using SmC_2 as a Starting Material" (発表予定).
• [Publications] Kuniaki Murase: "Rare Earth Separation using a Chemical Vapor Transporting Process Mediated by Vapor Complexes of the LaCl_3-AlCl_3 System" J.Alloys Comp.