Struktur and Umwandlungsverhalten von nanokristallinen Nickel-Phosphor-Legierungen

Translated title of the contribution: Structure and transformation behavior of nanocrystalline nickel-phosphorous alloys.

Heinrich Kreye*, Felix Muller, Katrin Lang, Dieter Isheim, Thomas Hentschel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

By electroless deposition coatings of nickel-phosphorus alloys up to about 100 μm thick can be deposited onto metallic and nonmetallic substrates. At phosphorus contents between 2 and 8 mass% the coatings exhibit a nanocrystalline structure. The process of the deposition of such coatings is described. The microstructure of the coatings is analysed by using X-ray diffraction, transmission electron microscopy and field ion microscopy. As a result, the grain size of the coatings varies between 2 and 10 nm depending on the phosphorus content. When heated at a rate of 5 K/min, excessive grain growth occurs at a temperature between 350 and 400°C, when the equilibrium phase Ni3P is formed. In the as-deposited state the nanosized supersaturated nickel crystals seem to be surrounded by an amorphous phosphorus-rich phase. At 150°C a relaxation and an increase in the phosphorus content of the amorphous phase can be observed.

Translated title of the contributionStructure and transformation behavior of nanocrystalline nickel-phosphorous alloys.
Original languageGerman
Pages (from-to)186-189
Number of pages4
JournalZeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
Volume86
Issue number3
StatePublished - Mar 1 1995

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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