
TY  - JOUR
A1  - Hester, J. R. 
A1  - Howard, C. J. 
A1  - Kennedy, B. J. 
A1  - Macquart, R. 
T1  - High-Temperature Structural Studies of SrPbO<emph type="8">3</emph> and BaPbO<emph type="8">3</emph>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2002
VL  - 55
IS  - 8
SP  - 543
EP  - 545
KW  - 
UR  - https://doi.org/10.1071/CH02023 
N2  - High-resolution X-ray powder diffraction studies have shown BaPbO3 to transform from an orthorhombic Imma structure at room temperature, through an intermediate I4/mcm phase, to a cubic Pm3&#8211;mstructure above 500°C. The Imma to I4/mcm transition is first order and the I4/mcm&#8211;Pm3&#8211;m transition for BaPbO3 is tricritical in nature. We find no evidence for any phase transitions in SrPbO3 up to 760°C, the structure remaining in Pnma from room temperature to 760°C. 
ER  -

