Published 1991 | Version v1
Journal article Metadata-only

Moessbauer spectroscopic studies on ultra fine powders of NiZn-ferrite

Creators

  • 1. Leipzig Univ. (Germany, F.R.). Sektion Physik
  • 2. Technische Univ. Dresden (Germany, F.R.). Sektion Chemie

Description

Mixed ferrite NixZn1-xFe2O4 was precipitated from a solution containing Ni2+, Zn2+ and Fe3+ ions in the molecular ratio of 1:1:4. The different aged samples were investigated by X-ray diffractometry and Moessbauer spectroscopy. The substance which was not aged contains β-FeOOH and strongly distorted NiZn ferrite. Ageing leads to the formation of spinel structure. Moessbauer spectra of the aged samples exhibit a typical relaxation shape, which can be explained by occuring of small clusters possessing complete spinel structure. (orig.)

Abstract (German)

Aus einer Loesung, die Ni2+, Zn2+ und Fe3+-Ionen im molaren Verhaeltnis von 1:1:4 enthielt, wurde Mischferrit NixZn1-xFe2O4 ausgefaellt. Die unterschiedlich gealterten Proben wurden mit Roentgendiffraktometrie und Moessbauer-Spektroskopie untersucht. Die ungealterte Substanz enthaelt β-FeOOH und stark gestoerten NiZn-Ferrit. Durch die Alterung bildet sich die angestrebte Spinellstruktur nach und nach heraus. Die Spektren der gealterten Proben zeigen eine Relaxationsform, die auf das Vorhandensein von Bereichen vollstaendig ausgebildeter Spinellstruktur zurueckgefuehrt wird. (orig.)

Additional details

Publishing Information

Journal Title
Isotopenpraxis
Journal Volume
27
Journal Issue
2
Series
Isotopenpraxis.
Journal Page Range
73-75
ISSN
0021-1915
CODEN
IPRXA

Conference

Title
Moessbauer colloquium.
Dates
26-28 Feb 1990.
Place
Freiberg in Sachsen (Germany, F.R.).

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
22059565
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
AGING; FERRITES; IRON OXIDES; MIXTURES; MOESSBAUER EFFECT; NICKEL OXIDES; POWDERS; SOLID CLUSTERS; SPINELS; X-RAY DIFFRACTION; ZINC OXIDES
Descriptors DEC
CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; DISPERSIONS; FERRIMAGNETIC MATERIALS; IRON COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; MINERALS; NICKEL COMPOUNDS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS; ZINC COMPOUNDS