In-depth analysis of electroless nickel plating layers by glow discharge emission spectrometry

Akira Miyawaki, Kazuaki Wagatsuma, Kichinosuke Hirokawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Glow discharge emission spectrometry with a Grimm-type lamp was applied to elemental analysis of electroless nickel layers deposited from hypo-phosphite plating baths. The plating layers contain ca. 8 weight per cent phosphorus. The depth profile analysis of the as-deposited sample indicates the segregation of phosphorus at the surface of the plating layer. The depth profilings of heat treated steel substrates covered by electroless nickel coatings were also studied. The heat treatment at 750°C makes a more complicated structure of the layer, consisting of nickel-iron oxide layers, a nickel-phosphorus plating layer, and an iron diffusion zone.

Original languageEnglish
Pages (from-to)125-129
Number of pages5
JournalBUNSEKI KAGAKU
Volume43
Issue number2
DOIs
Publication statusPublished - 1994

Keywords

  • glow discharge emission spectrometry
  • in-depth analysis
  • nickel electroless plating

ASJC Scopus subject areas

  • Analytical Chemistry

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