Nano-(Ta, Zr)C Precipitates at Multigrain Conjunctions in TaC Ceramic with 10 mol% ZrC and 5 mol% Cu as Sintering Aid

Figure 2

TEM of the consolidated TaC ceramic with 10 mol% ZrC plus 5 mol% Cu as sintering aid (a). HRTEM (b) and ring DP (c) of the circled area at multigrain conjunction evidenced formation of polycrystalline nano-(Ta, Zr)C. (d) DP of the circled (Ta, Zr)C grain, and (e) EDS of the circled area at multigrain conjunction and the (Ta, Zr)C grain.

(a)

(b)

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(e)