Mechanical grinding and reforming process of the Bi-2201 phase

Yasunori Ikeda, Yoshihiro Daitoh, Mikio Takano, Yoshichika Bando, Toshinobu Niinae, Jun Takada

Research output: Contribution to journal › Article

Abstract

Mechanical grinding and the reformation from ground powder of the Bi-2201 phase were examined by XRD, TEM and DTA. The `2201' phase changed easily into amorphous powder and ultra-fine crystals by mechanical grinding. When heated above 800°C, the ground powder reacted to reform the original `2201' phase. The fine `2201' crystals smaller than a critical size remaining in the ground powder were decomposed into Bi2CuO4 and SrCO3 by heating around 500°C in air, while even at room temperature in the air the XRD peaks from these ultra-fine crystals tend to disappear and SrCO3 formed on grinding.

Original languageEnglish
Pages (from-to)183-186
Number of pages4
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume40
Issue number2
Publication statusPublished - Feb 1993

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Reforming reactions
Powders
Crystals
Air
Differential thermal analysis
Transmission electron microscopy
Heating
Temperature

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

Ikeda, Y., Daitoh, Y., Takano, M., Bando, Y., Niinae, T., & Takada, J. (1993). Mechanical grinding and reforming process of the Bi-2201 phase. Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 40(2), 183-186.

Mechanical grinding and reforming process of the Bi-2201 phase. / Ikeda, Yasunori; Daitoh, Yoshihiro; Takano, Mikio; Bando, Yoshichika; Niinae, Toshinobu; Takada, Jun.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 40, No. 2, 02.1993, p. 183-186.

Research output: Contribution to journal › Article

Ikeda, Y, Daitoh, Y, Takano, M, Bando, Y, Niinae, T & Takada, J 1993, 'Mechanical grinding and reforming process of the Bi-2201 phase', Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, vol. 40, no. 2, pp. 183-186.
Ikeda Y, Daitoh Y, Takano M, Bando Y, Niinae T, Takada J. Mechanical grinding and reforming process of the Bi-2201 phase. Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 1993 Feb;40(2):183-186.
Ikeda, Yasunori ; Daitoh, Yoshihiro ; Takano, Mikio ; Bando, Yoshichika ; Niinae, Toshinobu ; Takada, Jun. / Mechanical grinding and reforming process of the Bi-2201 phase. In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 1993 ; Vol. 40, No. 2. pp. 183-186.
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