Denir Paganini Nascimento, M. Martorano, Caio Cesar Cebalos de Almeida, A. F. Padilha
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Measurements of hardness, young s modulus, and fracture toughness of solar grade silicon obtained from metallurgical grade silicon
Young modulus and toughness (K IC ) of bulk solar grade silicon (SoG-Si) obtained by directional solidification of metallurgical grade silicon were determined. The Young modulus was measured by the technique of impulse excitation of vibration and K IC was determined using the indentation method. Measurement values agree well with those available in the literature. The indentation method proved to be a reliable, relatively simple, inexpensive, and fast experimental method to measure K IC in SoG-Si.
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