Publication:
Fabrication and characterization of microstructure and tensile behaviour of CNT reinforced titanium matrix composite

Loading...
Thumbnail Image
Date
2014
Authors
Raja Surian Sakataven
Journal Title
Journal ISSN
Volume Title
Publisher
Research Projects
Organizational Units
Journal Issue
Abstract
The aim of this project research is to study the fabrication and characterization of microstructure and tensile (bending) strength of multi-walled carbon nanotube. reinforced titanium metal matrix forming titanium carbon nanotube (Ti-CNT) composites. The composite is obtained through powder metallurgy method with varying carbon nanotubes weight percentage in the composite. Powder methodology is the process of blending powdered raw material and compacting and later sintering it. The varying titanium-carbon nanotube composition are tested for their hardness, tensile strength (bending), density and their fractured microstructures are characterised. Comparison is made on the fractured surfaces between two sample pieces. The results from the mechanical testing showed that powder methodology fabrication process creates a strong Ti-CNT composite with stable microstructure. It was shown in the previous studies that the addition of carbon nanotubes into titanium metal matrix greatly improves the material properties. The Ti-CNT is expected produce superior tensile (bending) strength then conventional Ti metal strength. Content of MWCNTs coating Ti powder surface increases with increase in the CNT concentration of the solution. CNT reinforced Ti would have higher number of small grains in the microstructure compared to Ti with lesser percentage and no morphological change after sintering. The Vickers hardness testing is expected to improve as the CNT percentage increases. For the densities, the density is expected to increase for each sample as the percentage increases with the pure Ti having lowest density while Ti-3% MWCNT having the highest density.
Description
TA455.C3 R34 2014
Keywords
Carbon
Citation