Halo growth during unidirectional solidification of camphor–naphthalene eutectic system

Suk, Myung-Jin; Leonartz, K.

doi:10.1016/s0022-0248(00)00357-2

Cited by 34 publications

(14 citation statements)

References 17 publications

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“…5(b), so it is not the same as the nominal composition of C 0 or the composition equal to the coupled zone boundary on the primary b-Ni 3 Nb phase side suggested by Sharp and Flemings [21] and Suk and Leonartz [6]. Using the physical parameters in Table 1, the critical pulling velocity required for the formation of halo a-Ni phase, is calculated as 16 mm/s in directional solidification of Ni-24.19% Nb hypereutectic alloy.…”

Section: Article In Pressmentioning

confidence: 91%

“…In recent decade years, a number of papers on halo formation were published [4][5][6][7][8][9] and the early important models about halo formation were developed by Gigliotti et al [4] and Barclay et al [5], in which halo a dendrites were described to solidify at the position of the coupled zone toward the primary faceted b dendrites, which is not encompassed by the a-phase liquidus extension.…”

Section: Introductionmentioning

confidence: 99%

“…Suk et al [6,7] proposed another model of the competitive growth of different phases in eutectic alloys to explain the formation mechanism of halo dendrites. He recognized that the growth temperature for the halo phase is much higher than the coupled growth eutectic, but lower than the primary phases.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Halo formation in directional solidification of Ni–Ni3Nb hypereutectic alloy

Jiang

et al. 2007

Journal of Crystal Growth

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Section: Article In Pressmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Halo formation in directional solidification of Ni–Ni3Nb hypereutectic alloy

Jiang

et al. 2007

Journal of Crystal Growth

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“…The protrusion length of the primary naphthalene plate and primary camphor dendrite ahead of the camphor-naphthalene eutectic interface was measured at a given growth velocity and composition as a function of time. The experimental setup and detailed experimental procedure have been described elsewhere [11].…”

Section: Methodsmentioning

confidence: 99%

Oscillatory growth of nonfaceted dendrite and faceted plate during unidirectional solidification

Suk

Liu

2009

Met. Mater. Int.

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Nonfaceted dendrite and faceted plate in succinonitrile-0.7 wt.% salol and camphor-47.4 wt.% and -35 wt.% naphthalene mixtures were in situ observed during unidirectional solidification. Nonfaceted dendrite oscillates in the growth direction during unidirectional solidification, alternatively repeating fast and slow growth. The faceted phase, whose growth is operated by a two dimensional nucleation mode, also shows oscillation of growth velocity. The oscillation in the faceted phase is due to the intrinsic growth nature, while in the nonfaceted phase it is due to experimental artifacts, that is, thermal fluctuations in the cold and hot zones. The implications of the observed dendrite tip fluctuation in relation with the initiation of dendrite sidebranching have been discussed.

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“…One of the important methods of preparing such composite materials is through unidirectional solidification so that the required microstructure is obtained. During the last few years, the phase diagram, solidification behaviour, microstructures and other properties of binary organic systems forming eutectic mixtures and congruent melting compounds have been studied [1][2][3][4][5][6]. However, different systems under different conditions exhibit different properties.…”

Section: Introductionmentioning

confidence: 99%