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Effect of Sintering Mechanism on the Properties of ZrO2 Reinforced Fe Metal Matrix Nanocomposite
Author(s) -
Pushkar Jha,
Pallav Gupta,
Devendra Kumar,
Om Parkash
Publication year - 2015
Publication title -
journal of composites
Language(s) - English
Resource type - Journals
eISSN - 2356-7252
pISSN - 2314-5978
DOI - 10.1155/2015/456353
Subject(s) - materials science , microstructure , sintering , nanocomposite , scanning electron microscope , zirconium , phase (matter) , powder metallurgy , metal , grain size , metallurgy , composite material , chemistry , organic chemistry
The present paper reports phase, microstructure, and compressive strength of ZrO2 reinforced Fe Metal Matrix Nanocomposites (MMNCs) synthesized by powder metallurgy (P/M) technique. High purity grade iron metal powder was mixed with varying percentage of zirconium dioxide (5–30 wt%), compacted, and sintered in argon atmosphere in the temperature range of 900–1100°C for 1 to 3 hours. X-ray diffraction (XRD) analysis of specimens was done in order to study the phases present and scanning electron microscopy was carried out to determine the morphology and grain size of the various constituents. XRD result shows the presence of Fe, ZrO2, and Zr6Fe3O phase. Zr6Fe3O phase forms due to reactive sintering and is not reported earlier by researchers throughout the globe. SEM results showed the presence of dense microstructure with the presence of Fe, ZrO2, and some nanosize Zr6Fe3O phases

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