Multidimensional Structural Materials Lab

다차원 구조재료 연구실

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다차원 구조재료 연구실

For many years, experiments and computer modeling methods have been significantly used for characterizing the microstructures of mesoscopic materials in order to study their relationship to desired properties and in order to optimize the materials design and performance. In fact, many problems related to the properties of materials, such as cor￾rosion, fatigue crack formation, fracture, mechanical responses, piezoelectric responses, and etc, are three-dimensional in nature because most practical mesoscopic materials have a polycrystalline or multi-phase structure with significant complexity in the spatial arrangement of the microstructural units (for example, spatial and size distributions of grains and particles, grain boundary and interphase boundary character/energy distri￾butions, orientation texture, and etc.). This is especially true for metallic and ceramic structural and functional materials, since they are subject to various processes (for example, rolling, extrusion, tempering, sintering and etc) before commercializing. Therefore, it is of great interest to charac￾terize microstructural parameters and to reveal their effects on the properties of the materials in three dimensions for studying microstructure-property relation￾ships.

Major research field

Computational materials science, Microstructure-property relationship, Microstructural characterization

Desired field of research

Microstructural evolution, characterization and property relationship study using computational/experimental methods, Data analytics, Structural metals, ceramics and composites, Developing new computational methods

Research Keywords and Topics

• Mesoscopic microstructology
• Coupled simulation of working and coarsening of metallic materials
• Grain boundary character-energy relation
• Multiscale micromagnetics vs. microstructure
• Simulation of grain growth and sintering
• Data analytics on mechanical fields distribution in composites
• Abnormal grain growth in electrical steel
• Multiscale simulation for heat-current transport in perovskite LED device
• Evolution and characterization of bicontinuous system
• Mesoscopic microstructural characterization of Li+ ion battery cathode particles

Research Publications

• JOURNAL OF THE EUROPEAN CERAMIC SOCIETY / A two-dimensional Monte Carlo model for pore densification in a bi-crystal via grain boundary diffusion: Effect of diffusion rate, initial pore distance, temperature, boundary energy and number of pores / Son, Youngkyun; Chung, Hyesoo Belinda; Lee, Sukbin / 2020-07
• SCRIPTA MATERIALIA / A three-dimensional Monte Carlo model for coarsening kinetics of the bi-continuous system via surface diffusion and its application to nanoporous gold / Son, Gaeun; Son, Youngkyun; Jeon, Hansol; Kim, Ju-Young; Lee, Sukbin / 2020-01
• MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING / Three-dimensional digital approximations of grain boundary networks in polycrystals / Lee, Sukbin; Rohrer, G.S.; Rollett, A.D. / 2014-03

Patents

국가과학기술표준분류

  • EB. 재료
  • EB01. 금속재료
  • EB0101. 구조재료

국가기술지도분류

  • 기반주력산업 가치창출
  • 041700. 고기능 금속소재기술

녹색기술분류

  • 녹색기술관련 과제 아님
  • 녹색기술관련 과제 아님
  • 999. 녹색기술 관련과제 아님

6T분류

  • 기타 분야
  • 기타 분야
  • 070000. 위의 미래유망신기술(6T) 103개 세분류에 속하지 않는 기타 연구