SciELO - Scientific Electronic Library Online

vol.7 issue2Reentrant spin glass behavior in polycrystalline La0.7Sr0.3Mn1-X FeX O 3Influence of the crystallization thermal treatment on the structural and electrical properties of PZT thin films author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Materials Research

Print version ISSN 1516-1439
On-line version ISSN 1980-5373


ARAUJO, José Humberto de; SILVA, Nagib Francisco da; ACCHAR, Wilson  and  GOMES, Uílame Umbelino. Thermal decomposition of illite. Mat. Res. [online]. 2004, vol.7, n.2, pp.359-361. ISSN 1516-1439.

The effect of heat treatment on illite in air at temperatures ranging from 750 to 1150 °C was studied using the Mössbauer effect in 57Fe. The dependence of the Mössbauer parameters and relative percentage of the radiation absorption area was measured as a function of the firing temperature. The onset of thermal structural decomposition occurred at 800 °C. With rising temperature, the formation of hematite (Fe2O3) increased at the expense of the silicate mineral.

Keywords : Illite; Thermal decomposition; Mössbauer Spectroscopy.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License