Abstract
The density, porosity, and microstructures of MgB2 samples are very important factors for transition critical current density. The effect of heat-treatment temperatures on density and porosity in MgB2 superconductors has been investigated. The open porosity increases with increasing heat-treatment temperatures, but close porosity decreases. The calculated theory densities from the lattice parameters of the measured samples are 2.6-2.63 g/cm3. The average measured total porosity (including open and close porosity) is about 50%.
Original language | English |
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Pages (from-to) | 603-606 |
Number of pages | 4 |
Journal | Physica C: Superconductivity and its Applications |
Volume | 386 |
DOIs | |
State | Published - 15 Apr 2003 |
Externally published | Yes |
Event | ICMC 2002 - Xi an, China Duration: 16 Jun 2002 → 20 Jun 2002 |
Keywords
- Density
- MgB
- Porosity