Structural,thermal and optical study of nanocrystalline silicon produced by ball milling |
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Authors: | Claudio M. Poffo,Joã o C. de Lima,Sergio M. Souza,Daniela M. Trichê s,Tarciso A. Grandi,Ronaldo S. de Biasi |
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Abstract: | The ball milling process was used to obtain nanocrystalline cubic silicon. Between 5 and 10 h of milling, amorphous silicon was also formed. The differential scanning calorimetry (DSC) spectrum of a powder milled for 10 h showed that the amorphous–crystalline phase transition occurs at about 450 °C. According to Raman spectroscopy and X‐ray diffraction results, volume fractions of the crystalline, interfacial and amorphous phases were about 30, 39 and 31%, respectively. Copyright © 2010 John Wiley & Sons, Ltd. |
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Keywords: | nanomaterials amorphous silicon ball milling Raman spectroscopy X‐ray diffraction |
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