Abstract:
Nanocoolants’ offering extraordinary heat transport property demand new and exotic nanostructures as
fillers that can display enhanced thermal conductivity and thermochemical stability for efficient thermal
management operations. Herein we report for the first time, the processing of stable MAXene nanofluids
using 2D MAXene nanosheets derived from the bulk nanolaminated Ti3SiC2 MAX phase ternary carbides
via shear induced micromechanical delamination technique. The beneficial multifunctional physical
properties of MAXene colloid such as thermal conductivity, viscosity and lubrication effect are assessed
and reported. An enhancement of thermal conductivity by 45% is achieved at 323 K with a loading of
0.25 Vol% MAXene nanosheets. Interestingly, MAXene nanofluids exhibit decreased viscosity than the
basefluid revealing that it can act as ‘rheo-controlled’ nanofluid. It is a unique rheological behavior, not
exist in many well established conventional ceramic nanofluids. In addition, MAXene nanofluids also
offer lubricating property with very low coefficient of friction (COF) values (<0.1).
