Effect Of Yeast Content As Foaming Agent On The Mechanical Properties Of Titanium Foam

Nurul Farhana Izzati, Mohamad Nazri (2015) Effect Of Yeast Content As Foaming Agent On The Mechanical Properties Of Titanium Foam. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Effect Of Yeast Content As Foaming Agent On The Mechanical Properties Of Titanium Foam.pdf - Submitted Version Download (430kB)

Abstract

Nowadays, metal foam has gained interest in industry and became so popular. Its physical and mechanical properties are believed to give various benefits to various industries such as automotive, aerospace and biomedical application. Mechanical properties of metal foam such as light-weight structure, energy absorption, high stiffness and low Young’s modulus has entrusted the researchers to study the nature of the metal foam deeper for future benefits. This research succeed to achieve the research objectives which is to determine the effect of yeast content on the mechanical properties of titanium foam and study the effect of yeast content on the size of micro pores. Yeast as new organic foaming agent is proved as a replacement for existing foaming agent. Yeast weight percentage that have been used are 15, 25 and 30 wt. %. Titanium foam was made up with slurry technique with yeast as foaming agent and ethylene glycol as binder. The yeast decomposed during the sintering process and thus, it is environmental friendly. Different ratio of titanium powder to yeast was used to obtain the best result of titanium foam. The microstructure of the titanium foam was analysed using inverter microscope and image analyser was used to obtain the details of microstructure of titanium foam result. The pore size of titanium foam obtained was in range of 395.63 to 546.78 μm while the strut size obtained was in the range of 223.13 to 300 μm. The porosities of titanium foam lead to 60.5 until 75.5%. Furthermore, mechanical testing such as compression test was carried out. From the compression stress held, Young’s Modulus can be known. Compression stress of 2.41 to 4.56MPa and Young’s Modulus of 0.218 to 0.267GPa were obtained. All the results obtained fulfil the requirements of human cancellous bone.

Actions (login required)

View Item