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High Thermal Conductivity in Bi-In-Sn/Diamond Composites

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Document pages: 16 pages

Abstract: The Bi-In-Sn diamond composites were manufactured and characterized. Nano and micro Bi-In-Sn powders coated by oxide skin were produced by slice technique. Optimized sintering pressure was 0.53 MPa atthe temperature of 120 oC with air condition. The highest thermal conductivity of Bi-In-Sn diamond composites was up to 71.4 W m-1 K-1,which is ~290 higher than that of bulk Bi-In-Sn. Compared to the results of simulation, the actual thermal conductivity of Bi-In-Sn diamond composites was slightly lower, which is due to the gap generated between diamond particles in the solidification process, especially as the volume fraction of diamond particles is high.

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