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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2004.1
- 수록면
- 160 - 168 (9page)
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초록· 키워드
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We investigate the effects of solutal convection on the crystal growth rate in a horizontal configuration for diffusive-convection conditions and purely diffusion conditions achievable in a low gravity environment for a nonlinear thermal gradient. It is concluded that the solutally-driven convection due to the disparity in the molecular weights of the component A (Hg2Br2) and B (CO) is stronger than thermally-driven convection for both the nonlinear and the linear thermal profiles, corresponding to Grt = 8.5?03, Grs = 1.05?05. For both solutal and thermal convection processes, the growth rates for the linear thermal profile (conducting walls) are greater than for the nonlinear case. With the temperature humps, there are found to be observed in undersaturation for diffusive-convection processes ranging from DAB = 0.087 to 0.87. For the vertical configurations, the diffusion mode is so much dominated that the growth rate and interfacial distribution is nearly regardless of the gravitational accelerations. Also, the diffusion mode is predominant over the convection for the gravity levels less than 0.1 g0 for the horizontally oriented configuration.
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참고문헌 (10)
참고문헌 신청
F. Rosenberger / 1997 / Viohl and N. Buchan,Physical vapor transport revised 171 : 270 ~
H. Opermann / 19891989 / Chemical aspects of Hg2X2-decomposi-tion Pro-ceedings of the 2nd Intl symposium on univalent mercuryhalides
H. Zhou / 1996 / Physical vapor transport of zinc-teluride by dissocia-tive sublimation 167 : 534 ~
N.B. Singh / 1989 / Evalua-tion of transport conditions during PVT : 41 ~
[ 1 ] N.B. Singh et al / 1994 / Growth and characterization of mer-curous halide crystals : 155 ~
H. Opermann / 19891989 / Chemical aspects of Hg2X2-decomposi-tion Pro-ceedings of the 2nd Intl symposium on univalent mercuryhalides
H. Zhou / 1996 / Physical vapor transport of zinc-teluride by dissocia-tive sublimation 167 : 534 ~
N.B. Singh / 1989 / Evalua-tion of transport conditions during PVT : 41 ~
[ 1 ] N.B. Singh et al / 1994 / Growth and characterization of mer-curous halide crystals : 155 ~
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