Table 6.
Physical, electrical, and mechanical properties of as-received non-stick cookwares [[33], [34], [35], [36]].
| Coating type-Manufacturer | Name of Aluminium alloy of substrate non-stick cookware | Property | Value |
|---|---|---|---|
| PTFE Manuf-1 | AA 1050 | Density | 2.71 g/cm3 |
| Melting point | 650 °C | ||
| Thermal expansion | 24 × 10−6/K | ||
| Modulus of elasticity | 71 GPa | ||
| Thermal conductivity | 222 W/mK | ||
| Electrical resistivity | 0.0282 × 10−6 Ωm | ||
| Tensile strength | 125 MPa | ||
| Brinell hardness strength | 34 HB | ||
| Elongation | 12 % and above | ||
| Granite Manuf-4 | AA 4145 | Density | 2.74 g/cm3 |
| Melting point | 585 °C | ||
| Thermal expansion | 23.7 × 10−6/K | ||
| Thermal conductivity | 138 W/mK | ||
| Tensile strength | 480 MPa | ||
| Elongation | Upto 13 % | ||
| PTFE Manuf-2 & Granite Manuf-5 | AA 1100 | Density | 2.71 g/cm3 |
| Melting point | 657 °C | ||
| Thermal expansion | 23.6 × 10−6/K | ||
| Modulus of elasticity | 75 GPa | ||
| Thermal conductivity | 218 W/mK | ||
| Electrical resistivity | 0.030 × 10−6 Ωm | ||
| Tensile strength | 110 MPa | ||
| Brinell hardness strength | 28 HB | ||
| Elongation | 12 % and above | ||
| PTFE Manuf-3 | AA 1230 | Density | 2.70 g/cm3 |
| Melting point | 640 °C | ||
| Thermal expansion | 23 × 10−6/K | ||
| Modulus of elasticity | 69 GPa | ||
| Thermal conductivity | 230 W/mK | ||
| Tensile strength | 130 MPa | ||
| Granite Manuf-6 | AA 1145 | Density | 2.70 g/cm3 |
| Melting point | 647 °C | ||
| Modulus of elasticity | 75 GPa | ||
| Thermal conductivity | 227 W/mK | ||
| Electrical resistivity | 0.028 × 10−6 Ωm | ||
| Tensile strength | 130 MPa | ||
| Brinell hardness strength | 21 B |