Nanopolycrystalline Diamond Sintered from Onion-Like Carbon

Figure 3

(a), (c), (e), (g), (i), and (k) are HRTEM images and (b), (d), (f), (h), (j), and (l) are SAD of OLCs annealed at 900°C, 1000°C, 1100°C, 1200°C, 1300°C, and 1400°C.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)