Abstract
Composite coatings codeposited with PTFE particles into an electroless nickel matrix were prepared and their friction and wear characteristics were studied. The hardness of the coatings decreased with increasing PTFE content. Friction tests showed that the higher the PTFE content, the lower the coefficient of friction remained even after prolonged sliding motion and the coefficient of friction of the coatings remained low even increased the sliding speed. The relationship between vertical load and friction resistance was linearly proportional, satisfying Amontons' law, except at light loads. The coatings tested were found to have good self-lubricating properties and wear characteristics.
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