Change of electroless Ni-Mo-P alloy films by transient pulse heating

Tetsuya Osaka, Hideo Yamazaki, Iku Saito, Jun Kawaguchi

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The change of electroless Ni-Mo-P alloy films was investigated using a pulse heating method that provided a very high heating rate (up to 106 K min-1) and a very short heating time (200 ms). Both amorphous and crystalline Ni-Mo-P alloy films under 'as-plated' conditions were prepared by controlling the Na2MoO4 concentration in the plating baths. The heat change properties of both amorphous and crystalline films during the pulse heating were compared with those during conventional long-time annealing, by measuring the specific resistance, the temperature coefficient of resistance, and the saturation magnetization. For both amorphous and crystalline Ni-Mo-P alloy films under 'as-plated' conditions, the crystallization and the phase transformation processes which occurred during the pulse heating were different from the corresponding processes observed in the conventionally annealed films. Furthermore, the film structure after the higher-power pulse heating was also found to be different from that after conventional annealing at 700°C for 1h. The Ni-Mo-P alloy film after the pulse heating was very stable against change in the later conventional annealing at 700°C for 1h.

Original languageEnglish
Pages (from-to)3418-3422
Number of pages5
JournalJournal of the Electrochemical Society
Volume136
Issue number11
Publication statusPublished - 1989 Nov

Fingerprint

transient heating
pulse heating
Heating
Annealing
Crystalline materials
annealing
heating
Saturation magnetization
Crystallization
Heating rate
plating
Plating
phase transformations
baths
Phase transitions
crystallization
saturation
heat
magnetization
coefficients

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Change of electroless Ni-Mo-P alloy films by transient pulse heating. / Osaka, Tetsuya; Yamazaki, Hideo; Saito, Iku; Kawaguchi, Jun.

In: Journal of the Electrochemical Society, Vol. 136, No. 11, 11.1989, p. 3418-3422.

Research output: Contribution to journalArticle

Osaka, T, Yamazaki, H, Saito, I & Kawaguchi, J 1989, 'Change of electroless Ni-Mo-P alloy films by transient pulse heating', Journal of the Electrochemical Society, vol. 136, no. 11, pp. 3418-3422.
Osaka, Tetsuya ; Yamazaki, Hideo ; Saito, Iku ; Kawaguchi, Jun. / Change of electroless Ni-Mo-P alloy films by transient pulse heating. In: Journal of the Electrochemical Society. 1989 ; Vol. 136, No. 11. pp. 3418-3422.
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