Superconducting bulk, and production method for superconducting bulk
AssigneesNational Institute of Advanced Industrial Science and Technology, Aisin Corporation
InventorsShigeyuki ISHIDA, Hiraku OGINO, PavanKumarNaik SUGALI, Yoshinori TSUCHIYA, Akira IYO, Hiroshi EISAKI, Yoshiyuki YOSHIDA, Kenji KAWASHIMA, Yoshihisa KAMIYA
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Abstract
The critical current density of a superconducting bulk of an iron-based compound is improved compared with those of conventional superconducting bulks. A superconducting bulk (B) is a polycrystal of an iron-based superconductor, and has a degree of c-axis orientation, as determined by Lotgering's method, of not less than 0.2.
Claims11
A superconducting bulk which is a polycrystal of an iron-based superconductor, the superconducting bulk having a degree of c-axis orientation, as determined by Lotgering's method, of not less than 0.2.
A method for producing a superconducting bulk which is a polycrystal of an iron-based superconductor, comprising
- a main sintering step of sintering a pellet which is a temporary sintered compact while pressing the pellet in a uniaxial press, along a normal direction of principal surfaces of the pellet and such that a ratio of a principal surface size of the pellet to a thickness of the pellet increases, to obtain the superconducting bulk.
Dependencies are inferred from the claim text.