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Sintering effect for titanium foam prepared by slurry method

Ahmad, Sufizar and Muhamad, Norhamidi and Muchtar, Andanastuti and Sahari, Jaafar and Jamaludin, Khairur Rijal and Ibrahim, Mohd Halim Irwan (2008) Sintering effect for titanium foam prepared by slurry method. In: Proceedings of the 18th International Conference on Flexible Automation and Intelligent Manufacturing , June 30th – July 2nd, 2008, University of Skövde, Sweden.

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Abstract

Metal foams show great potential for a wide range of technical applications due to their unique mechanical and physical properties. There are many ways to produce metal foams and their manufacture involves the simultaneous occurrence of solid, liquid and gaseous phases. The slurry method was selected to produce titanium foams, in which the sintering process was the most critical. The objective of this paper is to determine the sintering effects on the prepared titanium foams. Titanium slurry was prepared by mixing pure titanium powder, polyethylene glycol (PEG), methylcellulose and water. Then, the polyurethane (PU) foam was impregnated in to the slurry and dried at room temperature. These were later sintered in a high temperature furnace. Due to the high reactivity of the titanium powder, two sintering environments were chosen, i.e. vacuum and argon atmosphere. The effects of sintering on the prepared titanium foams were quantified by measuring the sintering time, soaking time and rate of heating. The titanium foams were characterised using scanning electron microscopy (SEM) and energy dispersive x-ray fluorescence spectrometer (EDXRF). In this work, the range of pore size obtained was between 300 – 500 µm, with strut size in the range of 100 – 150 µm. The elements found in the material were titanium, phosphorus and calcium.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:titanium foam, slurry method, sintering Effect
Subjects:T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Divisions:Others
ID Code:5883
Deposited By: Khairur Rijal Jamaludin
Deposited On:11 Jul 2008 00:57
Last Modified:01 Jun 2010 15:36

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