Evaluation of Fracture Toughness of Al-Cu-Fe-B Quasicrystal

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Vickers indentation test,a simple method for the toughness determination,is used to test the fracture toughness of Al59Cu25.5Fe12.5B3 polycrystalline quasicrystal.According to the profiles of the indentation,the radial crack size and related equation,the
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