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Deformation and recrystallization textures in compressed polycrystalline silicon

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Abstract

Cylindrical samples of polycrystalline semiconductor-grade silicon have been compressed 30 pct at 1380°C at a rate of 0.08 s-1. The starting material had a strong «110» fiber texture, resulting from its growth by chemical vapor deposition; the fiber axis was perpendicular to the compression axis. The compression texture is very clearly defined after only 30 pct deformation, and has a «110» axis parallel to the compression axis and a «111» axis parallel to the original «110» fiber axis (perpendicular to the compression axis). Annealing for 10 min at 1380°C causes recrystallization. The recrystallization texture has a «100» axis parallel to the compression axis, and a «110» axis parallel to the original «110» fiber axis. Compression of a recrystallized sample gives the same deformation texture as does compression of the original material.

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S. KULKARNI, formerly with the Department of Metallurgy and Materials Science, University of Pennsylvania

G. NOEL, formerly with the Energy Center, University of Pennsylvania

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Pratt, B., Kulkarni, S., Pope, D.P. et al. Deformation and recrystallization textures in compressed polycrystalline silicon. Metall Trans A 8, 1799–1804 (1977). https://doi.org/10.1007/BF02646885

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  • DOI: https://doi.org/10.1007/BF02646885

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