Measurement of Young's modulus of silicon single crystal at high temperature and its dependency on boron concentration using the flexural vibration method
N. Ono et al., Measurement of Young's modulus of silicon single crystal at high temperature and its dependency on boron concentration using the flexural vibration method, JPN J A P 1, 39(2A), 2000, pp. 368-371
Young's moduli of silicon single crystals were measured in the temperature
range from room temperature to 1000 degrees C. The moduli were calculated f
rom the resonance frequencies in the flexural mode of vibration. This metho
d for measuring the moduli is thought to be more reliable than using the co
nventional tensile tests. Young's mudulus in the temperature range from 800
degrees C to 1000 degrees C did not decrease as much as expected. The depe
ndency on boron concentration was also investigated and found to be minimal
in this temperature range and at boron concentrations of up to 8.5 x 10(18
) atoms/cm(3).