TY - JOUR
T1 - Grain dynamics in Bi-2223 tapes measured by the 3DXRD microscope
AU - Poulsen, H.F.
AU - Andersen, N.H.
AU - Andersen, L.G.
AU - Lienert, U.
PY - 2002
Y1 - 2002
N2 - It is demonstrated how a novel X-ray diffraction method can provide information on the structural dynamics of the individual grains inside a Bi-222-3/Ag tape. A microfocused beam of 80 keV X-rays provides both the necessary spatial resolution and penetration power for in situ studies. In a feasibility study at the European Synchrotron Radiation Facility a green mono-filamentary tape is annealed in air for 12 h at 838.5 degreesC. The Bi-2212 to Bi-2223 transformation is found to be a dynamical process during which individual Bi-2212 grains form, dissociate and "recrystallise" at different times throughout the annealing. The typical reaction time is 1 It. The potential of the method for classifying grains according to orientation, volume and stoichiometry is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.
AB - It is demonstrated how a novel X-ray diffraction method can provide information on the structural dynamics of the individual grains inside a Bi-222-3/Ag tape. A microfocused beam of 80 keV X-rays provides both the necessary spatial resolution and penetration power for in situ studies. In a feasibility study at the European Synchrotron Radiation Facility a green mono-filamentary tape is annealed in air for 12 h at 838.5 degreesC. The Bi-2212 to Bi-2223 transformation is found to be a dynamical process during which individual Bi-2212 grains form, dissociate and "recrystallise" at different times throughout the annealing. The typical reaction time is 1 It. The potential of the method for classifying grains according to orientation, volume and stoichiometry is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.
KW - 5-I nano
U2 - 10.1016/S0921-4534(01)00949-2
DO - 10.1016/S0921-4534(01)00949-2
M3 - Journal article
SN - 0921-4534
VL - 370
SP - 141
EP - 145
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
ER -