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Effect of Compaction Pressure and Sintering Time on the Properties of Sintered Cu-10Sn Bronze

Effect of Compaction Pressure and Sintering Time on the Properties of Sintered Cu-10Sn Bronze

Authors :
Chiraporn Auechalitanukul
Narut Nakrod
Ryan C. McCuiston
Source :
Key Engineering Materials. 751:37-41
Publication Year :
2017
Publisher :
Trans Tech Publications, Ltd., 2017.

Abstract

Bronze-based composite materials are well known for use as friction materials. They are produced by powder metallurgy techniques from bronze powder, which acts as a matrix, and various friction modifying additives. The objective of this work was to study the effect of compaction pressure and sintering time on the properties of the unmodified bronze matrix. The bronze powder used was prealloyed with a composition of Cu-10Sn. The specimens were pressed by uniaxial die compaction with pressures of 282 to 339 MPa. The sintering experiments were conducted in an alumina tube furnace at 800 °C with sintering times of 30, 45, and 60 min under a vacuum pressure of 2.25x10-2 Torr. From the results, it was found that the density of the samples increased with increasing compaction pressure. A microstructural examination of the samples for the different sintering times showed them to look very similar. Finally, the highest sintered density of 7.30 g/cm3 was obtained at 800 °C for 60 min.

Details

ISSN :
16629795
Volume :
751
Database :
OpenAIRE
Journal :
Key Engineering Materials
Accession number :
edsair.doi...........21730db2a6ff8926188e68e270aa5a32
Full Text :
https://doi.org/10.4028/www.scientific.net/kem.751.37