科研之友
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摘要
The Mg-added (0%, 5%, and 10%) MgB2/Cu superconducting wires were prepared by the powder-in-tube (PIT) method. Vickers micro-indentation tests were performed on the samples with different peak loads at room temperature. The loading-unloading (P-h) curves were analyzed by the displacement approach to indentation. It was found that hardness (H) and the effective elastic modulus (E) values increased with Mg-added. In addition, these values showed peak load dependence (i.e. indentation size effect (ISE)).
- 出版日期2011-2-3
