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[en] This paper reports on high temperature neutron powder diffraction used to study the formation of the 110 K transition temperature material, Bi2Ca2Sr2Cu3Ox (2223), both from synthetic reaction mixtures and after partial melting. The results indicate that the 80 K transition temperature material, Bi2CaSr2Cu2Ox (2122), is the precursor to the (2223) material. The reaction to form the (2122) occurs rapidly at 860 degrees C, while the conversion of this material to the (2223) is much slower
Source
Christen, D. (Oak Ridge National Lab., Oak Ridge, TN (United States)); Narayan, J. (North Carolina State Univ., Raleigh, NC (United States)); Schneemeyer, L. (AT and T Laboratories, Murray Hill, NJ (United States)); 1322 p; ISBN 1-55899-057-7; 
; 1990; p. 129-132; Materials Research Society; Pittsburgh, PA (United States); Materials Research Society fall meeting; Boston, MA (United States); 27 Nov - 2 Dec 1989; CONF-891119--; Materials Research Society, 9800 McKnight Rd., Suite 327, Pittsburgh, PA 15237 (USA)
; 1990; p. 129-132; Materials Research Society; Pittsburgh, PA (United States); Materials Research Society fall meeting; Boston, MA (United States); 27 Nov - 2 Dec 1989; CONF-891119--; Materials Research Society, 9800 McKnight Rd., Suite 327, Pittsburgh, PA 15237 (USA)