Figure 3.

FESEM images of metal mixture binders on various tip substrates. (a) Tungsten, (b) SUS, (c) titanium, (d) silver, (e) kovar, and (f) copper. The annealing temperature was 750°C.

Ha et al. Nanoscale Research Letters 2013 8:355   doi:10.1186/1556-276X-8-355
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