1. BD/RT : Composition tendency- more Ni wt % with increasing BD 1.1 pH 2: BD enhances Ni deposition rate (Ni-W) 1.2 pH 8: BD inhibits both Ni and W deposition rates (Ni-W) 2. Boric acid/RT : Composition tendency- less Ni wt % with increasing boric acid (improves current efficiency; eliminates "streaks") 2.1 pH 8: Metal partial current densities greatly increase 2.2 Δ W rate ＞ Δ Ni rate 3. BD + Boric acid @ 60 °C: Improved current efficiency.
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