International Scholarly Research Notices / 2012 / Article / Tab 3

Research Article

Optimization of Multiple Roughness Characteristics of Chemically Deposited Ni-P-W Coating Using Weighted Principal Component Analysis

Table 3

Chemical composition and operating condition.

Bath constituentsValues

Nickel sulphate (g/L)20–30
Sodium hypophosphite (g/L)14–20
Sodium citrate (g/L)35
Ammonium sulphate (g/L)30
Lactic acid (g/L)5
Sodium tungstate (g/L)15–25
Temperature90 ± 2°C
Duration of coating3 hrs
Bath volume (mL)200

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