Polycrystalline silicon chunks and method for producing them
作者： Hanns Dr. Wochner , Laszlo Dr. Fabry
DOI:
关键词: Dopant 、 Titanium carbide 、 Vanadium carbide 、 Metallurgy 、 Nickel carbide 、 Carbide 、 Comminution 、 Materials science 、 Chromium carbide 、 Polycrystalline silicon
摘要: The present invention relates to polycrystalline silicon chunks which are cubic and have a metal content of less than 200 pptw dopant 50 ppta. Methods for producing chunks, comprising providing rod, comminuting the rod into cleaning wherein comminution takes place using spiked-roll crusher having at least one spiked roll, roll W2C phases or WC with 0.1-10% carbide selected from group consisting titanium carbide, chromium molybdenum vanadium nickel steel 1-25% W.
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