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Ni-Fe 합금입자 분산 Al2O3 나노복합재료의 미세조직 및 특성

Microstructure and Properties of Nano-Sized Ni-Fe Alloy Dispersed Al2O3 Composites

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주제분류금속공학

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Abstract

Processing and properties of Al2O3 composites with Ni-Fe content of 10 and 15 wt% were investigated. Homogeneous powder mixtures of Al2O3/Ni-Fe alloy were prepared by the solution-chemistry route using Al2O3, Ni(NO3)2 6H2O and Fe(NO3)3 9H2O powders. Microstructural observation of composite powder revealed that Ni-Fe alloy particles with a size of 20 nm were homogeneously dispersed on Al2O3 powder surfaces. Hot-pressed composites showed enhanced fracture toughness and magnetic response. The properties are discussed based on the observed microstructural characteristics.

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