Influence of Manufacturing Process on Distribution of MWCNT in Aluminium Alloy Matrix and its Effect on Microhardness
Nano composites are finding increased focus and their influence on improving the matrix properties are very attractive. But the success is fully dependent on the uniform distribution and dispersion of nano reinforcements in the matrix. Manufacturing process was found to have greater role in distribution of the reinforcements. The liquid processing and solid processing like SPS and hot coining found to have different effect on the matrix due to the nature of reinforcements. Current study focussed on the microstructure study using Back scattered images and the microhardness with and without reinforcements. MWCNT was occupying the particle boundary. Hot coining was found to distribute MWCNT on the particle surface as well as on the particle boundary. Clustering was absent and resulted in improved hardness in comparison with casting as well as spark plasma sintering.
Xiao Hong Zhu
V. Umasankar and T. Shijo, "Influence of Manufacturing Process on Distribution of MWCNT in Aluminium Alloy Matrix and its Effect on Microhardness", Materials Science Forum, Vol. 928, pp. 32-37, 2018