Study of YBa2Cu3O7_(X) reaction kinetics by Rietveld method

Using a recent proposed analysis procedure for quantitative phase determina tion by X-ray powder diffraction, YBa2Cu3O7-x solid state formation reactio n kinetics at 900 degreesC was studied. Although there was the presence of partial amorphous components, it was possible to determine a reaction route for the synthesis of the title compound from X-ray powder diffraction data collected at various stages of the thermal treatment and using the Rietvel d method for the quantitative determination of the phase composition. (C) 2 001 International Centre for Diffraction Data.