Research Article

Synthesis, Characterization, and Crystal Structure Refinement of Lanthanum and Yttrium Substituted Polycrystalline 2M Type Zirconolite Phases: Ca1-xMxZrTi2O7 (M = Y, La and x = 0.2)

Table 2

Refined atomic coordinate of ZrTi2O7 and ZrTi2O7 ceramic powders at room temperature.

AtomOccupancy2)

ZrTi2O7
Ca0.380530.133130.498570.802570.01789
Y0.380530.133130.498570.210570.01789
Zr0.123710.11665−0.022530.8920.02874
Ti10.25060.1250.74450.784740.00621
Ti20.46550.0180.270.507970.00648
Ti30.00010.1240.250.57590.00674
O10.3180.120310.281961.00.05487
O20.480940.175220.139161.00.05487
O30.225960.088150.57841.00.05315
O40.4050.1540.7191.00.05485
O50.7150.1050.5681.00.05379
O6−0.0070.140.4191.00.05789
O70.1150.0550.7781.00.05748

ZrTi2O7
Ca0.377320.138970.497150.80.02756
La0.377320.138970.497150.0970.02556
Zr0.125670.11477−0.022480.9350.02537
Ti10.25060.1250.74450.948540.01285
Ti20.46550.0180.270.423690.0 1487
Ti30.00010.1240.250.541780.01235
O10.3180.120310.281961.00.06679
O20.480940.175220.139161.00.05678
O30.225960.088150.57841.00.06658
O40.4050.1540.7191.00.05617
O50.7150.1050.5681.00.05618
O6−0.0070.140.4191.00.05614
O70.1150.0550.7781.00.05674