| Thermal and Mechanical Properties of Sapphire | ||||||||||||
| Density= 3.493 g/cc | ||||||||||||
| T (K) | Thermal Expansion | Heat Capacity | Thermal Conductivity | Tensile Strength | Yield Strength | Young's Modulus | ||||||
| (%) | (J/gK) | (W/cmK) | (Psi) | (Psi) | (Psi) | |||||||
| 373 | 0.052 | 9.00E-01 | 9.30E-01 | |||||||||
| 360 | 0.044 | 8.85E-01 | 9.30E-01 | |||||||||
| 340 | 0.030 | 8.60E-01 | 9.40E-01 | |||||||||
| 320 | 0.016 | 8.25E-01 | 9.40E-01 | |||||||||
| 300 | 0.004 | 7.80E-01 | 9.40E-01 | |||||||||
| 293 | 0.000 | 7.70E-01 | 9.50E-01 | |||||||||
| 273 | -0.016 | 7.25E-01 | 9.50E-01 | |||||||||
| 260 | -0.025 | 6.85E-01 | 9.60E-01 | |||||||||
| 240 | -0.037 | 6.40E-01 | 9.70E-01 | |||||||||
| 220 | -0.050 | 5.70E-01 | 9.80E-01 | |||||||||
| 200 | -0.066 | 5.00E-01 | 1.00E+00 | |||||||||
| 180 | -0.078 | 4.40E-01 | 1.05E+00 | |||||||||
| 160 | -0.090 | 3.70E-01 | 1.20E+00 | |||||||||
| 140 | -0.100 | 2.90E-01 | 1.40E+00 | |||||||||
| 120 | -0.115 | 2.20E-01 | 2.20E+00 | |||||||||
| 100 | -0.127 | 1.25E-01 | 4.00E+00 | |||||||||
| 80 | 9.00E+00 | |||||||||||
| 60 | 3.50E+01 | |||||||||||
| 40 | 7.00E+01 | |||||||||||
| 20 | 1.00E+02 | |||||||||||
| 10 | 3.00E+00 | |||||||||||
| 4.2 | 6.00E-01 | |||||||||||
| T(K) = Temperature in Kelvin, T(C) = Temperature in Celsius | ||||||||||||
| T (C) = T (K) - 273 | ||||||||||||
| Thermal Expansion (%) = 100 x [L(T) - L(293)] / L(293) | ||||||||||||
| Heat Capacity [=] 1 J/gK = 0.23864 BTU/lbm/F | ||||||||||||
| Thermal Conductivity [=] 1 W/cmK = 57.77 BTU/hr/ft/F | ||||||||||||
| Tensile and Yield Strengths- lower bound values given | ||||||||||||
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