Method for producing (Nb, Ti)3Sn wire by use of Ti source rods
US6981309B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2004 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Oct 13, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49117
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improvement is disclosed in the method for producing a multifilament (Nb, Ti)3Sn superconducting wire by the steps of preparing a plurality of Nb or Nb alloy rods where Nb or Nb alloy monofilaments are encased in copper or copper alloy sheaths; packing the Nb or Nb alloy rods within a copper containing matrix to form a packed subelement for the superconducting wire; providing sources of Sn, and sources of Ti within said subelement; assembling the subelements within a further copper containing matrix; and diffusing the Sn and Ti into the Nb or Nb alloy rods to form (Nb, Ti)3Sn. The method is improved by diffusing the Ti into the Nb from a minor number of Ti dopant source rods which are distributed among the Nb or Nb alloy rods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.