Research Article
Synthesis and Performance Evaluation of Pulse Electrodeposited Ni-AlN Nanocomposite Coatings
Table 1
Optimized bath composition and plating parameters for pulse electrodeposited Ni-AlN nanocomposite coatings.
| | S/N | Bath constituents | Composition in 1 L | Composition in 100 ml |
| | (1) | Nickel sulphate hexahydrate | 240 g | 24 g | | (2) | Nickel chloride hexahydrate | 45 g | 4.5 g | | (3) | Boric acid | 30 g | 3 g | | (4) | AlN powder | 3, 6, and 9 g | 0.3, 0.6, and 0.9 g | | Operating conditions | | (1) | pH | | | (2) | Temperature | °C | | (3) | Deposition time | 68 min (4 cycles each consists of 17 minutes) | | (4) | Current density | 50 mA/cm2 | | (5) | Bath agitation | 300 rpm | | (6) | Frequency | 800 Hz | | (7) | Forward current | 0.45 Amps | | (8) | Duty cycle | 50% | | (9) | (TON + TOFF) ms | 1.25 | | (10) | TON ms | 0.63 | | (11) | TOFF ms | 0.63 |
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