Fabrication of titanium foam by using compaction method

Ahmad, Sufizar and Abu Kassim, Mohamad Azizi Fabrication of titanium foam by using compaction method. In: 26th Regional Conference on solid state science & technology 2011, 22 - 24 Nov 2011, Negeri Sembilan Malaysia.

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Abstract

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%

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:porous structure; powder metallurgy; sintering; porosity; density'
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
ID Code:2169
Deposited By:M.Iqbal Zainal A
Deposited On:15 Dec 2011 14:20
Last Modified:15 Dec 2011 14:20

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