Formation and Properties of the Ta-Y₂O₃, Ta-ZrO₂, and Ta-TaC Nanocomposites

Figure 5

TEM images of the mechanically milled nanocrystalline Ta (a) and mechanically alloyed Ta-5Y₂O₃ (b), Ta-10Y₂O₃ (c), Ta-20Y₂O₃ (d), and Ta-40Y₂O₃ (e) nanocomposite powders; the smaller and darker particles correspond to ceramic phase, whereas bigger and lighter to tantalum matrix; the example grains are marked.

(a)

(b)

(c)

(d)

(e)