Abstract

A method, based on subtractive coloration of high-temperature reduction, has been developed to produce metal precipitates or colloids in oxides. The structure, symmetry, morphology and composition of precipitates were analyzed by analytical elecron microscopy and neutron scattering techniques. From the neutron-magnetic-scattering measurements, the ratio of magnetic to nuclear scattering amplitudes for the (111) precipitate reflection was determined to be 17% below the value for pure nickel, indicating the presence of a magnetically 'dead' layer around the precipitates, a small amount of impurities incorporated into the precipitates, or a small fraction of another phase of nickel.

Original languageEnglish (US)
Pages (from-to)287-300
Number of pages14
JournalPhilosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume49
Issue number2
StatePublished - Feb 1984

Fingerprint

Magnesium Oxide
magnesium oxides
Magnesia
Precipitates
precipitates
Metals
metals
Nickel
nickel
Scattering
nuclear scattering
Colloids
Neutron scattering
scattering
scattering amplitude
Oxides
colloids
Microscopic examination
Neutrons
neutron scattering

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics

Cite this

CHARACTERIZATION OF METAL PRECIPITATE IN MAGNESIUM OXIDE. PART I. / Narayan, J.; Chen, Y.; Moon, R. M.; Carpenter, Ray.

In: Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, Vol. 49, No. 2, 02.1984, p. 287-300.

Research output: Contribution to journalArticle

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