Dispersion Coating Containing High Content of Diamond Particles in a Nickel Matrix Using Azobenzene Surfactant

DOI Web Site 被引用文献4件 参考文献52件
  • TAKEBE Takashi
    Department of Chemistry and Materials Science, Tokyo Institute of Technology
  • MATSUZAKI Tomohiro
    Department of Chemistry and Materials Science, Tokyo Institute of Technology
  • SHRESTHA Nabeen K.
    Department of Chemistry and Materials Science, Tokyo Institute of Technology
  • SAJI Tetsuo
    Department of Chemistry and Materials Science, Tokyo Institute of Technology

この論文をさがす

抄録

The influence of a redox active surfactant (4-Ethylazobenzene-4’-(oxyethyl)trimethylammonium bromide, AZTAB) and a redox inactive surfactant (n-Dodecyltrimethylammonium bromide, DTAB) on the codeposition of diamond particles with nickel has been investigated. A nickel bath containing DTAB did not deposit a higher amount of diamond particles with nickel, whereas the nickel bath containing AZTAB deposited more than twice the amount of the particles (45.5 vol.%) that were deposited by the former bath (21.6 vol.%). An electrochemical investigation showed that AZTAB is reduced during the nickel deposition. Therefore, it has been assumed here that the reduction of free AZTAB at the cathode surface leads to desorption of AZTAB adsorbed on the particles in the vicinity of the cathode. As a result, deposition of these particles at the cathode surface takes place before these particles are being entrapped in the layer of growing nickel.<BR>The wear resistance of the Ni/diamond composite coatings containing various volumetric content of particles was also investigated. This showed that a higher degree of wear resistance accompanied increased particle content.

収録刊行物

  • 表面技術

    表面技術 54 (9), 610-615, 2003

    一般社団法人 表面技術協会

被引用文献 (4)*注記

もっと見る

参考文献 (52)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ