ISSN:
1013-9826
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:
The present study was undertaken to compare the hardness and transverse rupture strength(TRS) of metal-based tooling composites containing diamonds of different grit sizes. Two kinds ofbond matrix, copper-based and iron-based, were applied in the fabrication of the composites. In thecopper-based matrix, rare earth was used as an additive. Diamonds of three different grit sizes wereincorporated into two bond matrix, thereby forming six kinds of diamond composites. SEM and EDSwere used to analyze the fractured surfaces of the composites. It was found that the diamonds ofmedium grit size in the copper-based bond matrix led to the highest hardness and TRS. For theiron-based bond matrix, however, the hardness and TRS of the composites containing the coarsestdiamonds were found to be the highest. In same bond matrix, a close relationship between TRS andhardness was established
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.359-360.73.pdf
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