Effect of Si3N4 Coating on Strain and Fracture of Si Ingots

Karolin Jiptner; Hirofumi Harada; Yoshiji Miyamura; Masayuki Fukuzawa; Takashi Sekiguchi

doi:10.4028/www.scientific.net/MSF.725.247

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HomeMaterials Science ForumMaterials Science Forum Vol. 725Effect of Si3N4 Coating on Strain and Fracture of...

Effect of Si₃N₄ Coating on Strain and Fracture of Si Ingots

Abstract:

This study is concerned with the effect of reduced Si₃N₄ coating during Si growth carried out by the directional solidification cast method. Three crystals were grown and compared in terms of cracking behavior and strain distribution. It was found, that the outer areas of the grown Si ingots exhibit much higher strain than the center pieces and this corresponds with the appearance of cracks in higher density in the outer edges of the crystals. It was also found that cracks mainly propagated in vertical direction and less in horizontal direction due to the temperature gradient during growth.

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Periodical:

Materials Science Forum (Volume 725)

Pages:

247-250

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.725.247

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Online since:

July 2012

Authors:

Karolin Jiptner, Hirofumi Harada, Yoshiji Miyamura, Masayuki Fukuzawa, Takashi Sekiguchi

Keywords:

Coating, Crack, Crystal Growth, Dislocation, Strain

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