Properties and Microstructure of Mullite-Based Iron Nanocomposite

Hao Wang; Tohru Sekino; Takafumi Kusunose; Tadachika Nakayama; Koichi Niihara

doi:10.4028/www.scientific.net/KEM.317-318.611

Paper Titles

The Anisotropic Properties of the Tape Cast Si₃N₄ Ceramics with Rod-Like β-Si₃N₄ Seeds Addition
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Fabrication and Characterization of Zirconia-Based New Ceramic Composites for Thermal Barrier Coatings
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Design and Characterization of Porosity Gradient for the Laminated Alumina Tubes
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Alumina-Based Nanocomposites Fabricated by a Novel Soaking Method
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Properties and Microstructure of Mullite-Based Iron Nanocomposite
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High-Toughness Tetragonal Zirconia/Alumina Nano-Ceramics
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Microstructures and Mechanical Properties of Fine-Scale Fibrous Alumina / Zirconia Bi-Phase Composite Fabricated by Co-Extrusion Process
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Nanocomposite Formation in the Fe₃O₄-M (M=Al, Ti) Systems by Mechanical Alloying
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Fabrication of α-Sialon Nano-Ceramics
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 317-318Properties and Microstructure of Mullite-Based...

Properties and Microstructure of Mullite-Based Iron Nanocomposite

Abstract:

Mullite-based iron nanocomposites were prepared by the reduction of a mullite-iron oxide solid solution and successive hot pressing. The solid solution was obtained from the heat treatment of diphasic gel by sol-gel method. Some of the α-iron nanoparticles have an intra-granular structure just after reduction. Mechanical properties are strongly affected by the content of iron. Low iron content is beneficial to strengthening while high iron content can improve the fracture toughness. Furthermore, the nanocomposites also behave ferromagnetic properties at room temperature.