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Title

Sintering and Characterizations of WC-۲۰wt.% (Fe,Co) Nano-Structured Powders Developed by Ball-Milling

فصلنامه مواد پیشرفته و فرآوری، دوره: 2، شماره: 3
Year: 1393
COI: JR_JMATPR-2-3_001
Language: EnglishView: 37
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Authors

Minoo Karbasi - Department of Materials Engineering, Isfahan University of Technology, Isfahan, ۸۴۱۵۶۸۳۱۱۱ IRAN
Maryam Karbasi - Instructor Department of Materials Engineering, Isfahan University of Technology, Isfahan, ۸۴۱۵۶۸۳۱۱۱ IRAN
Ali Saidi - Professor Department of Materials Engineering, Isfahan University of Technology, Isfahan, ۸۴۱۵۶۸۳۱۱۱ IRAN
Mohammad Hossein fathi - Professor Department of Materials Engineering, Isfahan University of Technology, Isfahan, ۸۴۱۵۶۸۳۱۱۱ IRAN

Abstract:

The aim of the present work is to study the effects of the nanostructured WC-۲۰ wt. % (Fe,Co) with different ratios of iron to cobalt on the microstructure and hardness of sintered samples. Furthermore, a sample with a cobalt binder under the same condition was produced for the comparison purposes. The nanocomposite development, after different milling times, has been monitored by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). A homogenous distribution of nanostructured WC (crystallite size less than ۳۰ nm) in the binder matrix was formed after ۲۵ h milling. The hardness and the relative density of the WC-۲۰wt. % (Fe,Co) composites consolidated by conventional sintering at ۱۳۵۰˚C were investigated. In sintered samples after ۲۵ h milling, tungsten carbide grains have a uniform distribution with a lower grain size. Densification and hardness improved after ۲۵ h milling and reached optimum levels for the ۲۵ h milled powders with equal ratio of iron to cobalt.

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Paper COI Code

This Paper COI Code is JR_JMATPR-2-3_001. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1282686/

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Karbasi, Minoo and Karbasi, Maryam and Saidi, Ali and fathi, Mohammad Hossein,1393,Sintering and Characterizations of WC-۲۰wt.% (Fe,Co) Nano-Structured Powders Developed by Ball-Milling,https://civilica.com/doc/1282686

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Type of center: دانشگاه دولتی
Paper count: 20,213
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