ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this study, the effect of various binders’ compositions on the feedstock of pre-alloyedtungsten heavy alloys (WHAs) powders has been investigated. Four kinds of wax-based binderswere prepared from paraffin wax (PW), high-density polyethylene (HDPE), polypropylene (PP) andstearic acid (SA), and the characteristic of each feedstock was investigated at various temperaturesand shear rates. It was found that all the feedstocks exhibited pseudoplastic flow behavior.Feedstock having multi-polymer components showed better rheological properties than thosehaving mono-polymer because of good wettability between powder and binder, and less sensitivityto temperature and shear rates. This could be due to the molecular weight and length of molecularchain of PP and HDPE
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.363.pdf
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