Title
Synthesis of SiFeC Magnetoceramics from Reverse Polycarbosilane-Based Microemulsions
Abbreviated Journal Title
J. Am. Ceram. Soc.
Keywords
POLYMER-DERIVED CERAMICS; SINGLE-SOURCE PRECURSOR; MAGNETIC-PROPERTIES; BORAZINE PRECURSORS; SILICON-CARBIDE; COMPOSITES; PYROLYSIS; NANOPARTICLES; PARTICLES; NANOTUBES; Materials Science, Ceramics
Abstract
In this paper, we report the synthesis of iron-containing SiC(O) magnetoceramics using a reverse microemulsion technique. First, an aqueous iron nitrate solution as the internal phase and a polycarbosilane (PCS)-heptane solution as the continuous phase were emulsified in the presence of a surfactant to synthesize iron-containing PCS (Fe-PCS) reverse microemulsion systems. After the removal of water and heptanes, the Fe-PCS precursors were pyrolyzed at 600 degrees-1200 degrees C to produce magnetoceramics. The structures and magnetic properties of the ceramics obtained were characterized by using X-ray diffraction, transmission electron microscopy, electron probe microanalysis, and superconducting quantum interference device. The results showed that the ceramics contained Fe(3)Si nanoparticles, which dispersed in SiCO amorphous matrix. This unique structure makes the ceramics excellent soft ferromagnetic materials with a high magnetizability and negligibe hysteresis loops.
Journal Title
Journal of the American Ceramic Society
Volume
93
Issue/Number
10
Publication Date
1-1-2010
Document Type
Article
Language
English
First Page
3324
Last Page
3329
WOS Identifier
ISSN
0002-7820
Recommended Citation
"Synthesis of SiFeC Magnetoceramics from Reverse Polycarbosilane-Based Microemulsions" (2010). Faculty Bibliography 2010s. 1001.
https://stars.library.ucf.edu/facultybib2010/1001
Comments
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