Vv. Vashuk et al., THERMAL-STABILITY AND ELECTRICAL-CONDUCTIVITY OF BI2CA3-XSRXCO2OY (0-LESS-THAN-X-LESS-THAN-2.5) SOLID-SOLUTIONS, Inorganic materials, 34(1), 1998, pp. 54-57
Thermal stability of Bi2Ca3-xSrxCo2Oy (0 < x < 2.5) solid solutions wa
s studied at different oxygen partial pressures by thermogravimetry, c
oulometry, resistivity measurements, and x-ray diffraction analysis. T
he solid solutions decompose upon a decrease in y from 9 to 8.85; thei
r thermal stability decreases with increasing x. The resistivity of th
e materials correlates with their oxygen stoichiometry.