The Rheologyical Effect of Carbon Nanotubes on the Iron Based Metal Powder Injection Molding Feedstock

Abstract:

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Carbon nanotubes/ iron compound powder was prepared by high energy ball milling after purified and activated the CNTs. Then, the compound powder and paraffin wax based-binders were mixed to prepare feedstock and the rheological behavior was evaluated by SEM, rheometer and infrared spectrum analysis. By changing the CNTs content and powder loading, the viscosity, shear rate sensitive factor and viscos-activation energy were calculated. 0.2wt% of CNTs, the feedstock can disperse in the binders uniformly without the flowability affecting. Meanwhile, adding proper ratio of CNTs can increase the powder loading of MIM feedstock about 10%, which can optimize the following process conditions and the properties of MIM product.

Info:

Periodical:

Advanced Materials Research (Volumes 79-82)

Edited by:

Yansheng Yin and Xin Wang

Pages:

469-472

DOI:

10.4028/www.scientific.net/AMR.79-82.469

Citation:

S. Q. Liang et al., "The Rheologyical Effect of Carbon Nanotubes on the Iron Based Metal Powder Injection Molding Feedstock", Advanced Materials Research, Vols. 79-82, pp. 469-472, 2009

Online since:

August 2009

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Price:

$35.00

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