PALLADIUM - NICKEL ELECTROLYTE
PALLUNA® 468 is a weakly ammoniacal high-speed electrolyte for depositing palladium-nickel alloys in reel-to-reel equipment (selective dipping, jet plating, brush plating) and in reel-to-reel tab-plater. Normally, coatings containing at least 80 % of palladium are deposited, the alloy composition can be adjusted by simply changing the palladium concentration in the electrolyte, however. The ductile layers are white, bright and they exhibit a good resistance to tarnishing and corrosion.
Advantages
• Improved abrasion resistance
• High number of mating cycles
• Low porosity and crack-free
• Low internal stress
• High plating speed
• Constant alloy composition
• Long bath life
Applications
• Reel-to-reel equipment (selective dipping, jet plating, brush plating)
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ELECTROLYTE CHARACTERISTICS |
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COATING CHARACTERISTICS |
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Electrolyte type |
Weakly |
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Coating |
Palladium-nickel |
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Metal content |
20 (18 - 22) g/l Pd |
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Alloy composition |
80 wt.% Pd |
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pH value |
7.5 (7.4 - 8.0) |
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Colour of deposit |
White |
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Operating temperature |
45 (43 - 47) °C |
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Brightness | Bright |
| Current density range | up to 60 A/dm² |
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Hardness of deposit HV 0.015 (Vickers) approx. values |
580 - 620 HV |
| Plating speed | up to 16 μm/min |
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Max. coating thickness | 10 μm |
| Anode material | Pt-Ti (type PLATINODE Pt/Ti) |
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Density | 10.8 g/cm³ |
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Elongation | Approx. 3 % | ||
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Bendability (10 mm mandrel) |
2 μm crack-free | ||
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Bondability with fine gold flash (ultrasonic with AlSi wire) | Good | ||
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Solderability (100 % wetting in dip-and-look-test) |
Good |
