Impact Factor (2025): 6.9
DOI Prefix: 10.47001/IRJIET
The heat
sink is an important component in laptop computers as it dissipates the heat
generated by the system. The efficiency, cost and overall size of the system
can be affected by the heat sink device. Four selection criteria; thermal
conductivity, coefficient of thermal expansion, density and minimal cost to
choose a laptop computer cooling material The ideal heat sink material exhibits
high thermal conductivity, low coefficient of thermal expansion, low density
and low cost. In this study, we investigated the thermal properties of aluminum
matrix composites reinforced with 0-10 wt% copper-coated Multiwalled carbon
nanotubes (MWNTs) produced by liquid state processing. Composites with the
addition of <10 wt.% MWNTs have higher thermal conductivity than pure
aluminum produced by the same liquid state processing. The MWNTs/Al composite
exhibited a maximum thermal conductivity of 199 W/m/K at 5 wt.% MWNTs. The
increase in thermal conductivity is supported by the measured micro hardness.
The MWNTs/Al composites exhibited a maximum microhardness of 90 HV also at 5
wt.% MWNTs. The contribution of carbon nanotubes to the thermal conductivity of
the composite was demonstrated by theoretical analysis. The results showed that
MWNT-reinforced aluminum matrix composite is a potential material for high
thermal conductivity applications, such as heat sink applications.
Country : Indonesia
IRJIET, Volume 6, Issue 9, September 2022 pp. 100-108