Processing titanium foams using tapioca starch as a space holder

Amirhossein Mansourighasri, Norhamidi Muhamad, Abu Bakar Sulong

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

In this paper, the fabrication of open cellular titanium foams by using an innovative spacer through powder metallurgy was investigated. Current space holders used to fabricate titanium foam have brought attention to issues such as solubility, removal time, expensiveness and lack of environmental friendliness. Starch, as a new spacer, has been utilized in this research to overcome these issues. Starch is an environmentally friendly organic polymer that can be burnt off easily by heating. Starch is chemically stable and is not soluble in titanium. Titanium foams were fabricated in this study using starch. The mechanical properties and pore structures were investigated by SEM. The porosities of the fabricated titanium foams were 64-79%, and the sizes of open cellular pores were 100-300 μm. The observed yield strength of the foams was in the range of 23-41 MPa, and the Young's moduli were 1.6-3.7 GPa. Finally, the XRD results of titanium before and after sintering were studied to ensure that the foams produced featured no contamination.

Original languageEnglish
Pages (from-to)83-89
Number of pages7
JournalJournal of Materials Processing Technology
Volume212
Issue number1
DOIs
Publication statusPublished - Jan 2012

Fingerprint

Hölder Space
Starch
Titanium
Foam
Foams
Processing
Powder Metallurgy
Organic polymers
Sintering
Solubility
Young's Modulus
Powder metallurgy
Pore structure
Porosity
Contamination
Mechanical Properties
Yield stress
Heating
Fabrication
Polymers

Keywords

  • Component
  • Metal foam
  • Powder metallurgy
  • Sintering
  • Space holder
  • Titanium

ASJC Scopus subject areas

  • Computer Science Applications
  • Modelling and Simulation
  • Ceramics and Composites
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

Cite this

Processing titanium foams using tapioca starch as a space holder. / Mansourighasri, Amirhossein; Muhamad, Norhamidi; Sulong, Abu Bakar.

In: Journal of Materials Processing Technology, Vol. 212, No. 1, 01.2012, p. 83-89.

Research output: Contribution to journalArticle

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