Measurement of Youngs Modulus of Powders

AI Thread Summary
Measuring the Young's modulus of powders, particularly those with a particle size of around 50 microns, poses unique challenges. Quasi-static methods such as compression and tensile testing are generally not suitable for powder materials. To adapt the compression method for powders, modifications are necessary. One effective approach is using atomic force microscopy, which involves elastically indenting the sample with a microfabricated tip to a depth significantly less than 1 micron. Another viable technique is dynamic mechanical analysis conducted within a material pocket, allowing for better measurement of the mechanical properties of powdered materials.
aruneshk
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How do we measure the young's modulus of powders (particle size D50 is around 50 microns)?

Quasi static methods like compression , tensile etc are not recommended for powders like materials. WHat modifications do we need if one wants to use compression method ?
 
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Hi aruneshk, welcome to PF. One possible approach is atomic force microscopy, in which one elastically indents the sample to a depth of <<1 micron by using a microfabricated tip.
 
Another method that springs to mind is the use of dynamic mechanical analysis within a material pocket.
 

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