TY - JOUR
T1 - Mechanical Grinding and Reforming Process of the Bi-2201 Phase
AU - Ikeda, Yasunori
AU - Daitoh, Yoshihiro
AU - Takano, Mikio
AU - Bando, Yoshichika
AU - Niinae, Toshinobu
AU - Takada, Jun
PY - 1993
Y1 - 1993
N2 - 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.
AB - 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.
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U2 - 10.2497/jjspm.40.183
DO - 10.2497/jjspm.40.183
M3 - Article
AN - SCOPUS:0027541091
VL - 40
SP - 183
EP - 186
JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
SN - 0532-8799
IS - 2
ER -