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Polymer-derived SiCN composites with magnetic properties



Atanu Saha, Sandeep R. Shah, Rishi Raj, Stephen E. Russek


Composites consisting of particles of α-iron dispersed in silicon carbonitride (SiCN) were fabricated by a polymer route. The composites had iron inclusions with the same magnetization as bulk iron, but they resisted oxidation up to 500°C and had a hardness of 5-7 GPa. The composites behaved as ferromagnets, albeit with a low susceptibility attributed to the pinning of the domains by imperfect interfaces and to the elastic resistance from the SiCN matrix. This low-cost, low- temperature processing method can be used to make different kinds of ceramic composites with multifunctional properties.
Journal of Materials Research


high temperature magnetic materials, magnetic nanocomposites, polymer-derived composites, SiCN


Saha, A. , Shah, S. , Raj, R. and Russek, S. (2003), Polymer-derived SiCN composites with magnetic properties, Journal of Materials Research (Accessed April 23, 2024)
Created October 31, 2003, Updated October 12, 2021