Emerging Nanotechnologies for Manufacturing, 2nd Edition

352.5 Results and discussion

FIGURE 2.16

EDS spectra of W foil subjected to various oxidation and reduction treatments.

FIGURE 2.17

XRD pattern of (a) W foil after bulk oxidation in air at 800°C for 2 h and (b) that oxidized

and reduced in CO/CO

2

mixtures at 800°C for 36 h followed by air oxidation at 800°C

for 2 h.

7500

6000

4500

3000

1500

0

20 30 40

2–θ

(a)

(b)

50 60

Intensity (a.u.)

36 CHAPTER 2 Gas phase nanofication

W/WO

3

line in Figure 2.1c, while the morphology shown in Figure 2.19b evolves

when the foil in Figure 2.15b is subjected to an identical ...