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| Abstract: |
| This research contributes significantly to understand the thermal management capabilities of plate fin heat sinks (PFHS) fabricated from AlSi10Mg. The uniqueness in this study is that the heat sinks were exposed to abrasive blasting, heat treatment, and graphene coating, and a full evaluation of the influence of the aforementioned treatments on the thermal management capacities of PFHS was found. Untreated PFHS is compared with 1) abrasive blasted and graphene coated heat sink, and 2) heat treated and graphene coated heat sink. To assess the thermal efficiency of the PFHS variants, a dedicated experimental set up was meticulously constructed. It is noteworthy that a junction temperature of 60oC was assumed as the reference point for the analysis. The results revealed that the charging cycle time which denotes the time required attaining the junction temperature, increased 1.3 times for the sample being abrasive-blasted at 5 Mpa pressure and graphene-coated for 0.5mm when the maximum heat input of 45W is evaluated. When low heat input of 15 W is evaluated the results revealed that there is no significant difference in charging cycle when compared to the untreated heat sink. The charging cycle time increased 2 times for the sample which is heat–treated at 450oC and graphene – coated for 0.5mm at heat input of 15W. This finding unequivocally underscores the heightened capacity of the heat treated and graphene coated PFHS made of AlSi10Mg to withstand elevated junction temperatures. |
| Key words: PFHS abrasive blasting heat treatment graphene |
| DOI：10.11916/j.issn.1005-9113.2023118 |
| Clc Number:TG 454, TG 166.3 |
| Fund: |
