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Potassium bromide as space holder for titanium foam preparation

Mat Noor, Fazimah and Zain, M. I M and Jamaludin, Khairur Rijal and Hussin, R. and Kamdi, Zakiah and Ismail, Ahmad Fauzi and Ahmad, Sufizar and Mohd. Taib, Hariati (2014) Potassium bromide as space holder for titanium foam preparation. 4TH MECHNICAL AND MANUFACTURING ENGINEERING, PTS 1 AND 2, 465-46 . pp. 922-926. ISSN 1660-9336

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/AMM.4...


Titanium (Ti) alloy foam was prepared by using potassium bromide (KBr) as space holder with percentage between 20 to 40 wt.%. In this work, the potential of KBr as a new space holder was determined. The Ti alloy powder and space holder were first manually mixed before being compacted using hydraulic hand press. The green compacts were then sintered at temperature of 1160°C, 1200°C and 1240°C in a tube furnace. The microstructure of the Ti alloy foams were observed by Scanning Electron Microscope (SEM). It was revealed that the porosity content in the Ti foam was in the range of 16% to 31% and density in the range of 1.5 g/cm3 to 2.6 g/cm3. Moreover, the pore size of the titanium alloy foam is in the range of 187μm to 303μm. Although the sintering temperatures were found incapable of promoting overall densification to the Ti alloy foam, 1200°C was denoted to be the maximal temperature for promoting maximal porosity to the Ti alloy foam. Nonetheless, KBr was proven to be suitable as space holder for Ti foam preparation as referred to its stability and insolubility in the Ti alloy.

Item Type:Article
Subjects:T Technology
Divisions:Razak School of Engineering and Advanced Technology
ID Code:54537
Deposited By: Haliza Zainal
Deposited On:05 Apr 2016 06:59
Last Modified:12 Sep 2017 08:16

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