Abstract
The mechanical properties of single-quasicrystals of decagonal AlCoCuSi have been studied for the first time by applying the Vickers indentation method. The hardness has been determined as H ≃ 9.6 MPa. Estimates for the modulus of elasticity and the fracture toughness are given. The quasicrystals are highly strained internally. Scratching experiments show slight anisotropies in the abrasive friction coefficient. The dominant abrasive mechanism is microplowing.
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Wittmann, R., Urban, K., Schandl, M. et al. Mechanical properties of single-quasicrystalline AlCuCoSi. Journal of Materials Research 6, 1165–1168 (1991). https://doi.org/10.1557/JMR.1991.1165
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DOI: https://doi.org/10.1557/JMR.1991.1165