Temperature (˚C)

2θ

† FWHM

(h k l)

† d(A˚)

† a (A˚)

† Size (nm)

155

38.489

0.6106

(1 1 1)

2.3371

4.0480

13.8 ±1.2

165

38.336

0.6100

(1 1 1)

2.3461

4.0635

13.8 ± 1.3

175

38.429

0.6104

(1 1 1)

2.3405

4.0539

13.8 ± 1.2

180

38.339

0.2615

(1 1 1)

2.3459

4.0633

32.2 ± 3.6