Status of D-Measurements and Theory
 Complex, temperature-dependent structure of liquids
Diffusion in liquids not well understood
Theories of (self-) diffusion in liquids abound
Diffusivity measurements prone to be contaminated by convective transport
capillaries  "wall effects"
magnetic fields modify D itself
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Data from different techniques/authors typically differ by several 10 (-100)% -- uncertainty typically exceeds difference predicted by different theories |
Measurements at reduced gravity
Scientific Objectives
Accurate measurement of self-D(T)
- liquid elements selected for class-like structures
Investigation of "wall effect"
Characterization of convective contamination of diffusivity measurements on Earth
Interpretation of measured D(T) in terms of diffusion mechanisms/associated classes of liquid structures
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Liquid Metal Diffusion (LMD) Apparatus |
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