💎 晶体与结晶

Crystal Growth3D Diffusion-Limited Aggregation: random-walk particles stick to a growing fractal crystal.… Crystal Growth — Dendritic SolidificationA phase-field model of dendritic crystal solidification with adjustable undercooling and… Crystal Structures — BCC, FCC, HCP, Diamond LatticesRotate BCC, FCC, HCP and diamond unit cells in 3D and compare their coordination numbers and… Crystal DiffusionSimulate atomic diffusion in a crystal lattice via vacancy mechanism using Fick's 2nd law… Crystal DissolutionNewWatch crystals dissolve in a solvent as surface ions detach and diffuse into solution. Crystal Twinning & Grain BoundariesNewA mirror plane relates two crystal grains at a twin boundary; the CSL Σ value sets how… Crystal Lattice Defects — Vacancies, Interstitials & DislocationsNewClick to place vacancies, interstitials and impurities in a 2D crystal lattice, or insert an… Liquid CrystalApply a field to a nematic layer and watch the director field snap over at the Freedericksz… Photonic CrystalNewStack alternating high and low index layers and see which wavelengths get reflected, opening… Crystal Optics & BirefringenceLight splitting into ordinary and extraordinary rays through birefringent crystals. Snow Crystal Growth SimulationSimulate dendritic snow crystal (snowflake) growth using a diffusion-limited aggregation… Dendrite Growth — Snowflakes & SolidificationNewAs a melt solidifies, its flat interface goes unstable and branches into dendrites, with… Nucleation & Growth — Birth of a New PhaseNewWatch undercooling push cluster fluctuations past the critical nucleus radius, tipping them…