Simultaneous Codeposition of α-Alumina Particle and PTFE Particle with Nickel from Watts Type Bath

Abstract

The simultaneous codeposition of PTFE and α-alumina with nickel from Watts type bath was investigated. Nonionic surfactant (Triton-X 100) was added to the bath as a dispersing agent of PTFE. In the absence of α-alumina, PTFE particles did not codeposit, while they could codeposit in the presence of α-alumina pariticles. In order to clarify the PTFE codeposition promoting effect of α-alumina, interactions between the partcles and chemical species in the bath were also investigated.