DocumentCode
1381647
Title
A Proposal of New Fabricating Technique of Large MgB 
Bulk by a Capsule Method
Author
Naito, T. ; Sasaki, T. ; Fujishiro, H.
Author_Institution
Fac. of Eng., Iwate Univ., Morioka, Japan
Volume
22
Issue
3
fYear
2012
fDate
6/1/2012 12:00:00 AM
Firstpage
4401703
Lastpage
4401703
Abstract
We proposed a new fabricating technique of a large superconducting bulk (20-30 mm in diameter) by a capsule method and measured the trapped field distribution for the bulks. The capsule consists of a couple of commercial stainless steel flanges, a stainless steel plate and a copper gasket. The bulks showed a superconducting transition at 38.3-38.6 K with a transition width of 0.6-1.1 K. The trapped magnetic field of the center of the bulk surface reached 1.65 T at 14 K for the bulk 30 mm in diameter. These results indicate that the capsule method is useful to produce the tesla-order large bulk magnet.
Keywords
boron alloys; magnesium alloys; stainless steel; superconducting critical field; superconducting magnets; superconducting materials; superconducting transitions; MgB2; capsule method; copper gasket; fabricating technique; large superconducting bulk; magnetic flux density 1.65 T; size 20 mm to 30 mm; stainless steel flanges; stainless steel plate; superconducting transition; temperature 14 K; temperature 38.3 K to 38.6 K; tesla-order large bulk magnet; trapped field distribution; trapped magnetic field; Magnetization; Magnetometers; Steel; Superconducting magnets; Superconducting transition temperature; Temperature measurement; ${hbox{MgB}}_{2}$
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2011.2176896
Filename
6086586
Link To Document