Microstructure and superconducting properties of hot isostatically pressed MgB<sub>2</sub>
Microstructure and superconducting properties of hot isostatically pressed MgB<sub>2</sub>
Bulk samples of MgB2 have been formed by hot isostatic pressing (HIPping) of commercial powder at 100 MPa and 950 °C. The resulting material is 100% dense with a sharp superconducting transition at 37.5 K. Microstructural studies have indicated the presence of small amounts of second phases within the material, …