Table 2 Fitting results of free energy curve of Al2O3, Nb2O5 and AlNbO4 in Fig. 5.

From: Thermodynamic and microstructural study of Ti2AlNb oxides at 800 °C

Phase

H 0

a

b

c

I

Adj. R-Square

Al2O3

1.18577

−0.00368

−1.4271E-6

3.88868

0.01932

1

Nb2O5

2.0799

−0.01388

−2.54067E-6

10.8132

0.05475

1

AlNbO4

6.74954

−0.01287

−8.12388E-6

16.08122

0.06692

0.99999