Microstructure and Properties of Mulite-FeCr Multifunctional Composite
Mullite-based FeCr multifunctional composites were prepared by reducing (Fe, Cr)-doped mullite solid solution powders with different Cr/Fe ratio and successively hot pressing. Structural characterization revealed that the dispersion of intragranular FeCr alloy nanoparticles and intergranular iron grains in mullite matrix was obtained in nanocomposite powders. Dense mullite-FeCr composites were fabricated from nanocomposite powders by sintering at 1650 °C. The microstructures, mechanical and ferromagnetic properties of composites were strongly affected by the Cr/Fe ratio in initial solid solutions.
Takashi Goto, Yibing Cheng, Zhengyi Fu and Lianmeng Zhang
H. Wang et al., "Microstructure and Properties of Mulite-FeCr Multifunctional Composite", Advanced Materials Research, Vol. 66, pp. 81-84, 2009