無電解析出法による高比抵抗NiP皮膜の作製とその特性 [in Japanese] Preparation and It's Properties of High Resistivity NiP Films by Means of Electroless Deposition [in Japanese]
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High-resistivity NiP films were prepared by electroless deposition while varying the complexing agent species. When complexing agents having -NH<sub>2</sub> and=NH groups, e. g., amino acids or amines are used for the NiP bath, higher resistivity NiP films are obtained with electroless deposition. Complexing agents of β-alanine, diethylenetriamine, and sodium <i>L</i>-glutamate were most suitable making higher resistivity NiP films. The highest resistivity was obtained from a diethylenetriamine bath. The resistivity of NiP as-deposited film from a diethylenetriamine bath is 5, 400μΩcm, compared to 160μΩcm for usual NiP films. The most suitable NiP film from the diethylenetriamine bath shows resistivity stable against annealing at about 400°C. High specific resistivity films were found to contain a small amount of carbon. The NiP film from the diethylenetriamine bath contained ca. 3at% carbon, and exhibited a grain structure even at the amorphous state.
- Jitsumu Hyomen Gijutsu
Jitsumu Hyomen Gijutsu 47(9), 779-783, 1996-09
The Surface Finishing Society of Japan