Bibliographic Details
| Title: |
Method for producing MgB2 superconductor and MgB2 superconductor |
| Document Number: |
20080274902 |
| Publication Date: |
November 6, 2008 |
| Appl. No: |
12/071354 |
| Application Filed: |
February 20, 2008 |
| Abstract: |
The present invention provides a method for producing a MgB2 superconductor, comprising compacting and heating a mixture comprising Mg or MgH2 powder and B powder, wherein said mixture comprises SiC powder and an aromatic hydrocarbon, and a MgB2 superconductor having a higher critical current density (Jc) than that of the known MgB2 superconductors added SiC only or added an aromatic hydrocarbon only such as benzene. |
| Inventors: |
Yamada, Hideyuki (Nagoya-shi, JP); Uchiyama, Nobuhito (Nagoya-shi, JP); Kumakura, Hiroaki (Tsukuba-shi, JP); Kitaguchi, Hitoshi (Tsukuba-shi, JP); Matsumoto, Akiyoshi (Tsukuba-shi, JP) |
| Claim: |
1. A method for producing a MgB2 superconductor, comprising compacting and heating a mixture comprising Mg or MgH2 powder and B powder, wherein said mixture comprises SiC powder and an aromatic hydrocarbon. |
| Claim: |
2. The method as recited in claim 1, wherein the aromatic hydrocarbon is ethyltoluene. |
| Claim: |
3. The method as recited in claim 1, wherein the SiC powder has an average particle size of 10 to 30 nm. |
| Claim: |
4. The method as recited in claim 1, wherein said mixture has a content of the SiC powder of 5 to 30 mol % based on the theoretical amount of MgB2 to be produced. |
| Claim: |
5. The method as recited in claim 1, wherein the mixture is filled in a metal tube prior to compacting and heating. |
| Claim: |
6. A MgB2 superconductor produced by a method according to claim 1, which is a MgB2 superconducting wire comprising one or a plurality of cores of a MgB2. |
| Claim: |
7. The MgB2 superconductor according to claim 6, which is a multi-core MgB2 superconducting wire comprising a plurality of cores of a MgB2. |
| Current U.S. Class: |
505/231 |
| Current International Class: |
01; 01; 01 |
| Accession Number: |
edspap.20080274902 |
| Database: |
USPTO Patent Applications |
