Intensity count (a.u)

Calcination
temperture
˚C

Solid

γ-Al2O3

17.1

500

Al2O3

10.5

500

0.045FeAlO

8.4

500

0.065FeAlO

9.0

500

Ag-0.045FeAlO % 3.5

20.1

800

Al2O3

14.9

800

0.045FeAlO

13.5

800

Ag-0.045FeAlO % 3.5

12.5

800

Ag-0.045FeAlO % 4.0

Table 1: Intensity counts of the main diffraction lines of XRD of ?-Al2O3 phase for FeAlO samples calcined at 500 and 800C.