Mechanism of Synthesizing Al2O3/Fe-Al Composites with Nano Al2O3 Fibers by In Situ Process

Chen Jing Lu; Shu Xia Ren; Jian Lei Wang; Gang Yu

doi:10.4028/www.scientific.net/KEM.562-565.837

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 562-565Mechanism of Synthesizing Al2O3/Fe-Al Composites...

Mechanism of Synthesizing Al₂O₃/Fe-Al Composites with Nano Al₂O₃ Fibers by In Situ Process

Abstract:

In-situ composite of Al2O3/Fe-Al with Al2O3 fibers were prepared by partial oxidation of oxygen to Fe powder and Al power, crystal phase composition and elemental composition were analyzed by XRD, NORAN. The results indicated that, the crystal composition is determined by Aluminum content, when the content is enough, FeAl3, Al and Al2O3 will be gain, on the contrary, Fe2Al, FeAl, Fe3Al and Al2O3 will be gain; Al2O3 fibers were synthesized via VLS process, the quantity of Al2O3 fibers increased with the Al content, the whisker’s diameter was improved with increasing of sintering temperature.

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Periodical:

Key Engineering Materials (Volumes 562-565)

Pages:

837-841

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.562-565.837

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Online since:

July 2013

Authors:

Chen Jing Lu, Shu Xia Ren, Jian Lei Wang, Gang Yu

Keywords:

Al₂O₃/Fe-Al, Composite, In Situ Process, Mechanism, Whisker

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