Containerless metal single-crystal growth via electromagnetic levitation

Witteveen, J.P.; Vrielink, M. A. B.; Gastel, Raoul van; Houselt, Arie van

doi:10.1063/5.0064486

Cited by 5 publications

(2 citation statements)

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“…Then it has been modified by researchers worldwide to reach the needs and overcome the problems of directional solidification which arose according to the physico-chemical properties of the materials. [23][24][25][26][27][28] This method can be effectively utilized to grow bulk single crystals of desired materials with high quality and preferable size without any crack or strain. During the growth process some of the physical phenomena such as latent heat generation during crystallization, crystal-melt interface deflection, turbulent heat, and mass transport are involved which can be controlled effectively through suitable parameter control externally.…”

Section: Introductionmentioning

confidence: 99%

Single Crystal Growth of 4‐Aminobenzophenone (ABP) by Solution and Seeded Czochralski Pulling Techniques for Second Harmonic Generation Applications

Aruchamy

Srinivasan

2022

Cryst. Res. Technol.

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Highly efficient 4-aminobenzophenone (ABP) single crystals are grown from melt by employing the seeded Czochralski pulling technique for second harmonic generation (SHG) applications. The as-grown seed crystals from solution with dominant (100) and (001) facets are utilized to trigger the directional solidification. For successive growth, initial measurements of the furnace temperature distribution, heat flow structure, and solidification temperature of ABP in correlation with differential scanning calorimetry (DSC) analysis are made. The controlled diffusion is ensured by monitoring the interfacial layer between the melt and the growing crystal and is maintained by optimizing the melt temperature and pulling and rotation rates. Color change of the melt due to thermal-oxidation is prevented by appropriate control of the growth environment. A slow and steady growth rate affirms the good quality of the ABP single crystal. The anisotropic growth behavior of ABP from solution and melt is reported. Internal molecular structure, crystalline purity, molecular vibrational modes, optical transmission, and thermal behavior are studied using single crystal and powder X-ray diffraction, FTIR, UV-vis-NIR and DSC analyses. The obtained higher SHG efficiency of the grown ABP in comparison with that of the organic and inorganic standards urea and KDP reveals its suitability for SHG applications.

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Section: Introductionmentioning

confidence: 99%

Single Crystal Growth of 4‐Aminobenzophenone (ABP) by Solution and Seeded Czochralski Pulling Techniques for Second Harmonic Generation Applications

Aruchamy

Srinivasan

2022

Cryst. Res. Technol.

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“…In this chapter, we discuss the development of a novel crystal growth apparatus that employs electromagnetic levitation (EML) in a vacuum to grow elemental metal singlecrystals of superior quality and purity. [53] EML relies on the Lorentz force induced by the levitation coil and exerted on the metal sample. [27] A large high-frequency current is passed through a coil, which generates a large time-varying magnetic field.…”

Section: Exper Imental Setup For Containerless Metal Single Crystal G...mentioning

confidence: 99%