Effects of crystal-melt interfacial energy anisotropy on dendritic morphology and growth kinetics

Glicksman, M.E.; Singh, N. B.

doi:10.1016/0022-0248(89)90142-5

Cited by 109 publications

(58 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The magnitude of ␥ is found to be about 20% lower than the experimental value obtained by Schaefer et al, 29 but within the error bars of the more recent experimental result of Maraşli et al 30 The interfacial free energy is found to be very nearly isotropic, in agreement with experiment. 9,10 In addition, the Turnbull coefficient for succinonitrile from our simulation ͑0.35± 0.02͒ is in agreement with the experiments within the error bars.…”

Section: Discussionsupporting

confidence: 84%

“…8 Such direct experiments often involve contact angle measurements and are often not of sufficient precision to determine the anisotropy in ␥. However, the anisotropy of ␥ has been measured directly for a small number of transparent materials, such as succinonitrile and pivalic acid, 9,10 water, 11 ammonium bromide, 12 and hexaoctyloxytriphenylene. 13 For the majority of materials, the value of the interfacial free energy is extracted indirectly from nucleation data.…”

Section: Introductionmentioning

confidence: 99%

“…We have chosen SCN as a test candidate because experimental values for both the magnitude and the anisotropy of the interfacial free energy exist for comparison. 9,10 The first measurement of SCN crystal-melt interfacial free energy by Schaefer et al, 29 29 obtaining a value of 8.02ϫ 10 −3 J m −2 . In the experiments, the orientation dependence of ␥ for a crystal with cubic symmetry is often represented to low order by the expansion,…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Calculation of the crystal-melt interfacial free energy of succinonitrile from molecular simulation

Feng

Laird

2006

The Journal of Chemical Physics

View full text Add to dashboard Cite

The crystal-metal interfacial free energy for a six-site model of succinonitrile ͓N w C-͑CH 2 ͒ 2 -C w N͔ has been calculated using molecular-dynamics simulation from the power spectrum of capillary fluctuations in interface position. The orientationally averaged magnitude of the interfacial free energy is determined to be ͑7.0± 0.4͒ ϫ 10 −3 J m −2 . This value is in agreement ͑within the error bars͒ with the experimental value ͓͑7.9± 0.8͒ ϫ 10 −3 J m −2 ͔ of Maraşli et al. ͓J. Cryst. Growth 247, 613 ͑2003͔͒, but is about 20% lower than the earlier experimental value ͓͑8.9± 0.5͒ ϫ 10 −3 J m −2 ͔ obtained by Schaefer et al. ͓Philos. Mag. 32, 725 ͑1975͔͒. In agreement with the experiment, the calculated anisotropy of the interfacial free energy of this body-centered-cubic material is small. In addition, the Turnbull coefficient from our simulation is also in agreement with the experiment. This work demonstrates that the capillary fluctuation method of Hoyt et al. ͓Phys. Rev. Lett. 86, 5530 ͑2001͔͒ can be successfully applied to determine the crystal-melt interfacial free energy of molecular materials.

show abstract

Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Calculation of the crystal-melt interfacial free energy of succinonitrile from molecular simulation

Feng

Laird

2006

The Journal of Chemical Physics

View full text Add to dashboard Cite

show abstract

“…How to compute this small variation of g with orientation beyond the statistical uncertainty on g itself, which is unavoidable in any atomic-scale simulation, is not a priori obvious. Experimentally, quantitative measurements of this quantity for low-anisotropy interfaces between fcc (or bcc) solids and their melts have been performed for only a few transparent organic materials [16][17][18] and just two alloy systems (Al-Cu and Al-Si) [19,20].…”

Section: Introductionmentioning

confidence: 99%

Atomistic and continuum modeling of dendritic solidification

Hoyt

2003

Materials Science and Engineering: R: Reports

398

220

View full text Add to dashboard Cite

“…The other one is pivalic acid-H 2 O (PVA-H 2 O) system, the anisotropy of which has been reported to be strong. 7,8) Comparing the relationships between growth velocity and growth direction of these alloy systems, the effect of anisotropy of the solid/liquid surface energy on the growth direction has been investigated.…”

Section: Introductionmentioning

confidence: 99%

Effect of Anisotropy of Surface Energy on the Growth Direction of Solid Phase in Constrained Growth Condition

et al. 2005

View full text Add to dashboard Cite

The growth direction of solid phase, which has a great influence on the grain selection, has been investigated. Transparent organic systems, succinonitrile-H 2 O alloy and pivalic acid-H 2 O alloy have been used for unidirectional solidification. Essential parameters of phase diagrams, distribution coefficient of H 2 O (k) and liquidus slope (m) have been determined experimentally. The relationship is analyzed between dimensionless growth velocity (V=V c , where V c is the critical growth velocity for constitutional supercooling) and dimensionless growth direction ( 0 ). The change in 0 with V=V c is common and similar for both alloy systems. 0 increases rapidly at low growth velocity region. Then, 0 increases slowly and approaches unity with increasing V=V c . When the anisotropy of surface energy increases, the growth direction of solid phase becomes close to the preferred growth direction even at low growth velocity region, where cellular interface is observed.

show abstract

Effects of crystal-melt interfacial energy anisotropy on dendritic morphology and growth kinetics

Cited by 109 publications

References 15 publications

Calculation of the crystal-melt interfacial free energy of succinonitrile from molecular simulation

Calculation of the crystal-melt interfacial free energy of succinonitrile from molecular simulation

Atomistic and continuum modeling of dendritic solidification

Effect of Anisotropy of Surface Energy on the Growth Direction of Solid Phase in Constrained Growth Condition

Contact Info

Product

Resources

About