Internal Structure
Although surprisingly airy, the microcrystalline of metal still provide the most hardness because it formed from simple, three-dimensional pattern which spread the impact force approximately in all direction of the structure.
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Image courtesy of Emergent
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Distribution of Aluminum grains
Atomic and Molecular Structure
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Gold diatom
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Magnet diatom
Bonding Force
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Alternative Usage
base on the change in atoms structure
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