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Author Roy, S. ♦ Ghose, J.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CRYSTAL-PHASE TRANSFORMATIONS ♦ COPPER OXIDES ♦ IRON OXIDES ♦ POLYMERS ♦ COMPOSITE MATERIALS ♦ QUENCHING ♦ X-RAY DIFFRACTION ♦ ELECTRIC CONDUCTIVITY ♦ EXPERIMENTAL DATA
Abstract The effect of a polymer matrix on phase transitions in CuFe{sub 2}O{sub 4} spinel oxide has been studied. XRD results show that cubic CuFe{sub 2}O{sub 4} is obtained by quenching from 1173 K, while with CuFe{sub 2}O{sub 4}-PEEK composite samples, the cubic form is obtained by quenching from considerably lower temperatures ({approximately}733 K). The change in resistivity with temperature of the quenched composite samples shows that the cubic samples quenched from <1173 K undergo several phase changes during heating. Measurements of thermoelectric power indicate that the composite samples quenched from {le}1073 K show n-type conduction, and the sample quenched from 1173 K shows p-type conduction.
ISSN 00224596
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-04-01
Publisher Place United States
Journal Journal of Solid State Chemistry
Volume Number 144
Issue Number 1


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