No abstract

Poster Sessions electron microscopy. Synchrotron powder diffraction data of the sample were obtained using high resolution powder diffraction beam line (8C1) at Pohang Acceleration Laboratory. In a system of (Ba1-xLax)2In2O5+x, two phase boundaries was existed in accordance with x, as shown in below diagram. Rietveld method was used for refining the structure parameter of the (Ba1-xLax)2In2O5+x. The cell parameters of each phase was refined as a=5.94239(2)Å, b= 8.21858(3)Å, c=5.72480(2)Å for LaInO3, a=16.73045( 31)Å, b= 6.09718(11)Å, c=5.96295( 15)Å for BaIn2O5, and a=4.15398(2)Å for (BaLa)In2O5 respectively. The electrical conductivity of the sintered samples was measured by DC four-probe method. The relationship between the oxide-ion conductivity and crystal structure of (Ba1-xLax)2In2O5+x (0<= x<= 1) will be discussed.

not Available.