| Autor: |
Wan, Fang, Sumption, Michael D, Rindfleisch, Matthew A, Thong, C J, Tomsic, Michael J, Collings, Edward W |
| Předmět: |
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| Zdroj: |
Superconductor Science & Technology; Sep2020, Vol. 33 Issue 9, p1-9, 9p |
| Abstrakt: |
MgB2 superconducting wires made using a Mg infiltration method have reached a higher performance than either in-situ or ex-situ mixed powder based routes. Indeed, very high layer Jc coupled with whole-strand Je (critical current per total strand cross section) exceeding 104 A cm−2 at 4.2 K, 10 T have been found for monocore MgB2 wires. However, previous multicore infiltration route wires have not reached their potential for Je due to partially reacted and non-uniform MgB2 layers. This study shows that 18-core MgB2 AIMI wires processed using a low temperature route can attain higher and more uniform Je values due to a more uniform MgB2 reaction layer. The formation of fully reacted, uniform MgB2 layers is attributed to the switch from a liquid-solid to a vapor-solid reaction route. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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