论文信息 - The piezoresistance coefficients of copper and copper-nickel alloys

The piezoresistance coefficients of copper and copper-nickel alloys

This paper attempts to further a better understanding of the piezoresistance coefficients by studying the piezoresistive effects in copper and copper-nickel alloys. The experimental evidence of isotropic piezoresistance coefficients (π11 = π12) has been obtained for the annealed copper and copper-nickel alloys. The piezoresistance coefficients of the cold-worked copper and Cu60Ni40 alloy are of the tensor character (π11 ≠ π12). A physical explanation has been given to the change of the (πij) tensor.

[1] D. Read,et al. Orthorhombic elastic constants of an NbTi/Cu composite superconductor , 1977 .

[2] D. Grady,et al. Piezoresistive effects in ytterbium stress transducers , 1977 .

[3] Y. Gupta,et al. Quasistatic experiments to determine material constants for the piezoresistance foils used in shock wave experiments , 1984 .

[4] Naohiro Soga,et al. Elastic constants and their measurement , 1974 .