Shaped Ceramics with Tunable Magnetic Properties from Metal-Containing Polymers Journal Articles uri icon

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  • A shaped, magnetic ceramic was obtained from a metal-containing polymer network, which was synthesized by thermal polymerization of a metal-containing organosilicon monomer. Pyrolysis of a cylinder, shape, or film of the metal-containing polymer precursor produced a low-density magnetic ceramic replica in high yield. The magnetic properties of the shaped ceramic could be tuned between a superparamagnetic and ferromagnetic state by controlling the pyrolysis conditions, with the particular state dependent on the size of iron nanoclusters homogeneously dispersed throughout the carbosilane-graphitic–silicon nitride matrix. These results indicate that cross-linked metal-containing polymers may be useful precursors to ceramic monoliths with tailorable magnetic properties.


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

publication date

  • February 25, 2000