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(a) Thermal conductivity and thermal expansion coefficient of silicon versus temperature. The data represented by circles and triangles are from Touloukian et al. (1970a ▶); the continuous lines are polynomials fits. (b) Thermal expansion coefficients: α (black line), secant αse (green line) and thermal strain ∊th (red line) versus temperature for a silicon crystal, the reference temperature being T ref = 77 K.
