Authors:E. Filipek, I. Rychlowska-Himmel, and A. Paczesna
important source of information on the multicomponent oxide systems are the diagrams of phaseequilibria reached in them. Such diagrams provide information on the composition, type and thermal stability of compounds and phases formed in a given system as
Authors:E. Radomińska, T. Znamierowska, and W. Szuszkiewicz
]. According to [ 1 , 8 ] this compound crystallizes in the orthorhombic system with Pnma space group ( a = 7.812(2), b = 5.740(1), c = 10.056(2) Å). We found no reported data on its melting point, too.
Studies of phaseequilibria which occur in
Authors:M. Bosacka, E. Filipek, P. Šulcova, Ž. Dohnalová, and A. Paczesna
Phase equilibria up to solidus line in CuO–In2O3 system have been investigated using XRD and DTA/TG methods. According to the results, only one compound of the formula Cu2In2O5 formed in the system studied. Its thermal stability was determined in the air and argon proving that the compound did not melt but underwent decomposition. The decomposition of Cu2In2O5 in the air atmosphere began at 1080 °C, while in argon at 835 °C. Additional studies were undertaken to determine the hitherto unknown colour properties of samples representing the CuO–In2O3 system in the equilibrium state.
with the similar melting point. Due to the closeness of temperatures of these two effects, in the experiment conditions another solid product was not found.
Phaseequilibria in the system FeVO 4 –CuO
The objective of