Fabrication of titanium foam by using compaction method
Metal foam is a new material that is less used in engineering. Metal foam is widely used in biomedical fields to produce artificial human bones. Metal foam made of a porous structure that provides the physical and mechanical properties of both as low specific weight and high thermal flu...
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| Format: | Conference or Workshop Item |
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| Online Access: | http://eprints.uthm.edu.my/2169/ http://eprints.uthm.edu.my/2169/1/sufizar.pdf |
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| Summary: | Metal foam is a new material that is less used in engineering. Metal foam is widely used in biomedical fields to produce artificial human bones. Metal foam made of a porous structure that
provides the physical and mechanical properties of both as low specific weight and high thermal
fluidity. In this study, the selected metal to be foamed is a titanium metal powder. In general,
titanium is very light weight compared to other metals. Special properties ofthe titanium encourage
more study implemented on titanium foam. Preferred methods for producing titanium foam is via
powder metallurgy or Fraunhofer process. Foaming agent used is urea or carbamide which is widely
used as crop fertilizer, Powder metallurgy process needs to go through the miing, pressing,
sintering and analysis. The composition of titanium was fixed at 75o/o' 80yo and 85% while the
remaining percentage is the composition ofthe urea. The selected sintering tempemture is 1200 " C,
1250 " C and 1300
0
c. sintering proc€ss was conducted in the tube furnace in the argon gas
atmosphere. After sintering process carried ou! analysis ofthe density and porosity was carried out
on all samples. Density test shows the increasing density ofthe particles of titanium when added up
to 85% for all sintering temperatures. For porosity tests, it is found that the p€rcentage of porosity
decrcases when the titanium particles inqeas€d up to 85% |
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