探索介尺度科学: 从新角度审视老问题

Li, JingHai; Hu, Ying; Yuan, Quan

doi:10.1360/n032014-00052

Cited by 17 publications

(3 citation statements)

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“…This means that the GGG single crystal is successfully grown. The current work deepens our understanding of the mesoscience 28 from the viewpoint of chemical bonding behaviors during melt crystallization.…”

Section: Resultsmentioning

confidence: 86%

Applying the chemical bonding theory of single crystal growth to a Gd₃Ga₅O₁₂Czochralski growth system: both thermodynamic and kinetic controls of the mesoscale process during single crystal growth

2015

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The chemical bonding theory of single crystal growth was applied to a Gd 3 Ga 5 O 12 (GGG) Czochralski growth system. On the basis of anisotropic chemical bonding characteristics, the mesoscale process controlled by both thermodynamics and kinetics has been studied in GGG single crystal growth. Starting from the unit-scale in the growth system, the mesoscale structures undergo evolution from GdO 8 , GaO 6 , and GaO 4 to Gd 3 Ga 5 O 12 clusters and to a GGG single crystal via chemical bonding between Gd, Ga, and O. On the basis of the chemical bonding theory of single crystals, the GGG single crystal thermodynamically prefers to exhibit a hexagonal configuration along the [111] pulling direction. Kinetically, isotropic mass transfer in the Czochralski growth process leads to formation of a GGG single crystal with a circular configuration, as viewed down along the [111] direction. In such a case, the GGG single crystal maintains the lowest energy. In order to satisfy both thermodynamic and kinetic controls, the thermodynamically preferred {−110} microfacets are exposed on the microscale and the single crystal adopts a circular shape on the macroscale. The present work deepens our understanding of the mesoscale process in the GGG Czochralski growth system.

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Section: Resultsmentioning

confidence: 86%

Applying the chemical bonding theory of single crystal growth to a Gd₃Ga₅O₁₂Czochralski growth system: both thermodynamic and kinetic controls of the mesoscale process during single crystal growth

2015

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“…Thus, establishment of mesoscience deserves global effort and joint action from the whole spectrum of science and support from our whole society. Fortunately, the National Natural Science Foundation of China (NSFC) has launched a mesoscience program focusing on the two levels of mesoscales in chemical engineering [24].…”

Section: Remarks and Perspectivementioning

confidence: 99%

Regime-Specific Multi-Objective Variational Principle of Compromise in Competition at Mesoscales

Li,

Huang,

Chen

et al. 2017

Preprint

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The energy-minimization multiscale (EMMS) principle of compromise in competition is believed to be generally applicable for all mesoscale problems at different levels in the real world, spanning from elementary particles to the universe. This stimulated a fundamental proposition of the concept of mesoscience. This article discusses a potential universality of the regime-specific multi-objective variational feature of this underlying principle through case studies in chemical engineering. It is also elucidated why the currently available variational principles are not applicable to the mesoscale problems. The paper concludes with prospects on future study.

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“…Mesoscience is a subject that describes the phenomenon and principle of mesoscales, in which the critical scientific problem is to explore the principle of compromise in competition in the system. 1 In the melt system, single crystal materials can be formed by the collective behavior of unitscales, i.e. the particles that are composed of crystal constituents.…”

mentioning

confidence: 99%

Mesoscale morphology evolution of a GdAl₃(BO₃)₄single crystal in a flux system: a case study of thermodynamic control of the anisotropic mass transfer during crystal growth

Sun

Wang

et al. 2015

CrystEngComm

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探索介尺度科学: 从新角度审视老问题

Cited by 17 publications

References 0 publications

Applying the chemical bonding theory of single crystal growth to a Gd₃Ga₅O₁₂Czochralski growth system: both thermodynamic and kinetic controls of the mesoscale process during single crystal growth

Applying the chemical bonding theory of single crystal growth to a Gd₃Ga₅O₁₂Czochralski growth system: both thermodynamic and kinetic controls of the mesoscale process during single crystal growth

Regime-Specific Multi-Objective Variational Principle of Compromise in Competition at Mesoscales

Mesoscale morphology evolution of a GdAl₃(BO₃)₄single crystal in a flux system: a case study of thermodynamic control of the anisotropic mass transfer during crystal growth

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探索介尺度科学: 从新角度审视老问题

Cited by 17 publications

References 0 publications

Applying the chemical bonding theory of single crystal growth to a Gd3Ga5O12Czochralski growth system: both thermodynamic and kinetic controls of the mesoscale process during single crystal growth

Applying the chemical bonding theory of single crystal growth to a Gd3Ga5O12Czochralski growth system: both thermodynamic and kinetic controls of the mesoscale process during single crystal growth

Regime-Specific Multi-Objective Variational Principle of Compromise in Competition at Mesoscales

Mesoscale morphology evolution of a GdAl3(BO3)4single crystal in a flux system: a case study of thermodynamic control of the anisotropic mass transfer during crystal growth

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Applying the chemical bonding theory of single crystal growth to a Gd₃Ga₅O₁₂Czochralski growth system: both thermodynamic and kinetic controls of the mesoscale process during single crystal growth

Applying the chemical bonding theory of single crystal growth to a Gd₃Ga₅O₁₂Czochralski growth system: both thermodynamic and kinetic controls of the mesoscale process during single crystal growth

Mesoscale morphology evolution of a GdAl₃(BO₃)₄single crystal in a flux system: a case study of thermodynamic control of the anisotropic mass transfer during crystal growth