TY - JOUR
T1 - Growth mechanism of the directionally solidified Si-TaSi2 eutectic in situ composite
AU - Cui, Chunjuan
AU - Zhang, Jun
AU - Su, Haijun
AU - Liu, Lin
AU - Fu, Hengzhi
PY - 2009/4/1
Y1 - 2009/4/1
N2 - Although both phases of the Si-TaSi2 eutectic have high entropy of fusion, the Si-TaSi2 eutectic structure exhibits a regular morphology (rod-like). This is not consistent with the classical Jackson-Hunt (J-H) theory based on the entropy of fusion. In the present paper, the growth mechanism of the Si-TaSi2 eutectic is discussed. Jackson factor and the critical kinetic undercooling for the transition from faceted to non-faceted growth of the two phases are calculated. The transition from faceted to non-faceted growth is also observed at the different crystal growth stages in the experiment.
AB - Although both phases of the Si-TaSi2 eutectic have high entropy of fusion, the Si-TaSi2 eutectic structure exhibits a regular morphology (rod-like). This is not consistent with the classical Jackson-Hunt (J-H) theory based on the entropy of fusion. In the present paper, the growth mechanism of the Si-TaSi2 eutectic is discussed. Jackson factor and the critical kinetic undercooling for the transition from faceted to non-faceted growth of the two phases are calculated. The transition from faceted to non-faceted growth is also observed at the different crystal growth stages in the experiment.
KW - A1. Directional solidification
KW - A1. Entropy of fusion
KW - A1. Jackson factor
KW - A1. Kinetic undercooling
KW - B2. Eutectic in situ composite
UR - https://www.scopus.com/pages/publications/65249165472
U2 - 10.1016/j.jcrysgro.2009.02.014
DO - 10.1016/j.jcrysgro.2009.02.014
M3 - 文章
AN - SCOPUS:65249165472
SN - 0022-0248
VL - 311
SP - 2555
EP - 2559
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 8
ER -