Shaped ceramics with tunable magnetic properties from metal-containing polymers

Science

Volumn 287, Issue 5457, 2000, Pages 1460-1463

  MacLachlan, Mark J ^a   Ginzburg, Madlen ^a   Coombs, Neil ^a   Coyle, Thomas W ^a   Raju, Nandyala P ^b   Greedan, John E ^b   Ozin, Geoffrey A ^a   Manners, Ian ^a  

^a UNIVERSITY OF TORONTO   (Canada)

^b MCMASTER UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

FERROMAGNETIC MATERIAL; IRON; METAL DERIVATIVE; ORGANIC COMPOUND; POLYMER; SILICON;

ARTICLE; CERAMICS; CHEMICAL STRUCTURE; CROSS LINKING; DIFFERENTIAL SCANNING CALORIMETRY; MAGNETISM; MOSSBAUER SPECTROSCOPY; PRIORITY JOURNAL; PROTON NUCLEAR MAGNETIC RESONANCE; PYROLYSIS; SCANNING ELECTRON MICROSCOPY; TEMPERATURE; X RAY DIFFRACTION; YOUNG MODULUS;

EID: 0034712087     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.287.5457.1460     Document Type: Article

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22. -1). A black, lustrous ceramic that appeared identical in shape to the precursor was obtained (1.351 g, 90% yield). Ceramics were also prepared at higher temperatures (every 50°C up to 1000°C) under similar conditions. Yields of 90 ± 2% were obtained in each case.
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24. We have studied the genesis of the ceramic in great detail using a multianalytical diffraction, microscopy, spectroscopy and thermal analysis approach, over the temperature range 25° to 1000°C. Full details of this study will be published later. For reference purposes, key data are included in supplementary material (available at www.sciencemag.org/feature/data/ 1047398.shl).
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26. We acknowledge C. Berry for gas adsorption measurements and G. Favoro for nanoindentation measurements. We thank the Natural Sciences and Engineering Research Council (NSERC) of Canada for financial support The Mössbauer data provided by C. Jones are appreciated. M.J.M. thanks NSERC for a postgraduate scholarship (1995-99). I.M. thanks the Ontario Government for a PREA Award (1999-2004), NSERC for an E. W. R. Steacie Fellowship (1997-99), and the University of Toronto for a McLean Fellowship (1997-2003). G.A.O. thanks the Killam Foundation for an Isaac Walton Killam Foundation Fellowship (1995-97).