Published March 1989 | Version v1
Journal article Metadata-only

A study of some Yugoslav bentonites by Moessbauer, X-ray and ESR spectroscopy

Creators

  • 1. Institut Jozef Stefan, Ljubljana (Yugoslavia)
  • 2. Institut Rudjer Boskovic, Zagreb (Yugoslavia)
  • 3. Faculty of Mining and Metallurgy, Titova Mitrovica (Yugoslavia)

Description

A number of bentonite samples and their constituents were studied as a function of composition and the annealing temperature using X-ray, Moessbauer and ESR spectroscopy. The main clay minerals in bentonites are montmorillonites, which display in MS three ferric doublets and one ferrous doublet indicating iron occupation in cis and trans OH octahedral sites and in tetrahedral sites. Haematite particles were detected in some samples prefired above 9000C. Several mineralogical transformations were identified in samples annealed in the temperature region below 12000C. The presence of isolated ferric and Mn(II) ions was confirmed by ESR spectra. (orig.)

Additional details

Publishing Information

Journal Title
Hyperfine Interactions
Journal Volume
46
Journal Issue
1-4
Series
Hyperfine Interact.
Journal Page Range
665-672
ISSN
0304-3843
CODEN
HYIND

Conference

Title
International symposium on the industrial applications of the Moessbauer effect (ISIAME '88).
Dates
12-16 Sep 1988.
Place
Parma (Italy).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Switzerland
INIS RN
20058136
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ANNEALING; BENTONITE; CHEMICAL COMPOSITION; ELECTRON SPIN RESONANCE; EXPERIMENTAL DATA; HEMATITE; HIGH TEMPERATURE; MOESSBAUER EFFECT; MONTMORILLONITE; VERY HIGH TEMPERATURE; X-RAY DIFFRACTION; YUGOSLAVIA
Descriptors DEC
CLAYS; COHERENT SCATTERING; DATA; DEVELOPING COUNTRIES; DIFFRACTION; EUROPE; HEAT TREATMENTS; INFORMATION; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; IRON ORES; MAGNETIC RESONANCE; MATERIALS; MINERALS; NUMERICAL DATA; ORES; OXIDE MINERALS; RESONANCE; SCATTERING; SILICATE MINERALS