Paper Title:
Optimization of Composite MIM Feedstock Rheological Behaviour by Experimental Analysis
  Abstract

The kneading process and formulations of feedstock obviously affect the quality of MIM products. In the present work, the rheological behaviour of the composite MIM feedstock, metal matrix (Cu) with few additions of ceramic powders (Al2O3), was measured by a selfdesigned/ manufactured simple capillary rheometer. Experimental results show that the distribution between powders and binder is more uniformly when blending time increased. Though high powder loading will increase the feedstock viscosity, the fluidity reveals relatively stable through the load curves of extrusion. Besides, the temperature-dependence of viscosity of the feedstock approximately follows an Arrehnius equation. Basing on Taguchi’s method, the kneading optimization conditions and the rheological model of the feedstock were established, respectively.

  Info
Periodical
Materials Science Forum (Volumes 534-536)
Edited by
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
Pages
385-388
DOI
10.4028/www.scientific.net/MSF.534-536.385
Citation
C. C. Chen, C. W. Wu, C. M. Yen, "Optimization of Composite MIM Feedstock Rheological Behaviour by Experimental Analysis", Materials Science Forum, Vols. 534-536, pp. 385-388, 2007
Online since
January 2007
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