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http://hdl.handle.net/2080/563
Title: | Synthesis of Aluminium-Cementite Metal Matrix Composite by Mechanical Alloying |
Authors: | Chaira, Debasis Sangal, S Mishra, B K |
Keywords: | Al-Fe3C composite Cold compaction and sintering Dual-drive planetary mill Hot pres Mechanical alloying Metal matrix composite Particle size analysis XRD |
Issue Date: | 2007 |
Publisher: | Taylor and Fransis |
Citation: | Materials and Manufacturing Processes, Vol 22, Iss 4 P492 - 496 |
Abstract: | Cementite powder was prepared from elemental iron and graphite powder by mechanical alloying (MA) in a specially built dual-drive planetary mill. The phase evolution, particle-size distribution, and morphology of particles were studied during 40 hours grinding period. X-ray diffraction (XRD) shows formation of cementite and other iron carbides along with elemental iron after milling, whereas after annealing only cementite is present. Initially particle size increases with milling due to ductility of iron powder and then reduces with further milling. Al-cementite composite was synthesized by mixing cementite with Al powders, and then by hot pressing or cold compaction and sintering. XRD analysis of Al-Fe3C composite shows Fe3C, FeAl, Al, and other iron carbides along with Al4C3 after sintering. Scanning electron microscope (SEM) micrograph of hot-pressed samples shows excellent compatibilility between Al matrix and cementite particles. |
Description: | Copyright for this paper belongs to Taylor and Francis |
URI: | http://dx.doi.org/10.1080/10426910701235991 http://hdl.handle.net/2080/563 |
Appears in Collections: | Journal Articles |
Files in This Item:
File | Description | Size | Format | |
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UC-T 653.pdf | 1.11 MB | Adobe PDF | View/Open |
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