Research Article
Effects of Biceramic AlN-SiC Microparticles on the Thermal Properties of Paraffin for Thermal Energy Storage
Table 2
Surface free energy of the reinforcing powders.
| | Sample | Contact angle (deg) | Surface free energy (mJ/m2) | WA (mN/m) | | Water | Diiodomethane | Dispersive | Polar | Total |
| | Paraffin | 87.44 (±0.367) | 56.08 (±0.825) | 32.688 | 2.363 | 35.051 | — | | AlN | 84.63 (±2.477) | 22.28 (±2.247) | 45.797 | 1.180 | 46.977 | 80.722 | | SiC | 14.9 (±1.103) | 9.5 (±0.408) | 43.310 | 32.383 | 75.693 | 92.747 | | SiC@AlN | 74.18 (±3.207) | 13.22 (±0.545) | 47.131 | 3.763 | 50.894 | 84.465 |
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