skip to main content
Ngôn ngữ:
Giới hạn tìm kiếm: Giới hạn tìm kiếm: Dạng tài nguyên Hiển thị kết quả với: Hiển thị kết quả với: Chỉ mục

Production of flaky amorphous powders in Fe-Zr-B system by a supercooled liquid quenching method, and their magnetic properties

Oguchi, M. ; Harakawa, Y. ; Inoue, A. ; Masumoto, T. ; Suzuki, K.

Journal of Materials Science, 1994, Vol.29(7), pp.1825-1832 [Tạp chí có phản biện]

ISSN: 0022-2461 ; E-ISSN: 1573-4803 ; DOI: 10.1007/BF00351302

Toàn văn không sẵn có

Trích dẫn Trích dẫn bởi
  • Nhan đề:
    Production of flaky amorphous powders in Fe-Zr-B system by a supercooled liquid quenching method, and their magnetic properties
  • Tác giả: Oguchi, M. ; Harakawa, Y. ; Inoue, A. ; Masumoto, T. ; Suzuki, K.
  • Chủ đề: Ferrous Alloys ; Powder Technology ; Zirconium ; Alloying Elements ; Boron ; Copper ; Flakes ; Synthesis ; Supercooling ; Quenching (Cooling) ; Magnetization ; Size Effects ; Powder Technology (MD) ; Article ; Fe, Ferrous Alloys ; Fe Sub 85 Zr Sub 8 B Sub 6 Cu Sub 1
  • Là 1 phần của: Journal of Materials Science, 1994, Vol.29(7), pp.1825-1832
  • Mô tả: By using a supercooled liquid (two-stage) quenching method, in which supercooled liquid droplets produced by high-pressure gas atomization are flattened at high kinetic energies on a rapidly rotating wheel, flaky amorphous powders with a thickness of 1–3 μm and a large aspect ratio of 20–300 were produced for an Fe 85 Zr 8 B 6 Cu 1 alloy. This is in contrast to the result that spherical powders produced only by high-pressure gas atomization consist of amorphous, bcc and compound, even in the particle size range below 25 μm. The amorphous powder changes to a mostly single bcc phase by annealing for 3.6 ks at 873 K, and the further rise in annealing temperature causes the mixed structure of α-Fe + Fe 3 (Zr,B). The annealed flaky powders with the bcc phase exhibit soft magnetic properties of 140 emu g −1 for saturation magnetization σ 10k and 0.6 Oe for coercivity, H c . The composite made from the bcc flaky powders and phenol resin at a weight ratio of 9∶1 has a high degree of laminated structure. The composite also exhibits soft magnetic properties of 5.3 kG for D 100 , 150 for μ max and 1.1 Oe for H c . The B 100 value is 2.1 times as high as that for the composite of amorphous Co-Fe-Si-B flaky powders and resin. Thus the present composite is expected to be used in applications which require both high saturation magnetization and soft magnetic properties, which cannot be obtained for the composites made from amorphous Co- and Fe-based flaky powders.
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0022-2461 ; E-ISSN: 1573-4803 ; DOI: 10.1007/BF00351302

Đang tìm Cơ sở dữ liệu bên ngoài...