Manufacture of multifilamentary Nb/sub 3/Sn superconductor by the external diffusion method: tin coalescence and diffusion

Conference · Thu Jan 01 00:00:00 EST 1981 · Proc. Symp. Eng. Probl. Fusion Res.; (United States)

OSTI ID:6436601

Klein, J D; Cogan, S F; Kwon, S; Rose, R M

The Sn layer coalescence problem is solved by the use of oxide layers to stabilize the liquid tin. This is simply achieved by heat treatment in an oxidizing atmosphere. Diffusion data and measurements of Nb/sub 3/Sn reaction layer kinetics suggests that under many conditions the rate limiting step in converting the filaments to Nb/sub 3/Sn is reaction layer formation rather than diffusion of Sn through the bronze matrix. The influence of composite geometry on reaction layer formation in the external diffusion processes is examined.

• Research Organization: MIT, Cambridge, MA, USA
• OSTI ID: 6436601
• Report Number(s): CONF-811040-
• Journal Information: Proc. Symp. Eng. Probl. Fusion Res.; (United States), Conference: 9. symposium on engineering problems of fusion research, Chicago, IL, USA, 26 Oct 1981
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
NIOBIUM BASE ALLOYS
FABRICATION
SUPERCONDUCTORS
TIN
DIFFUSION
TIN ALLOYS
BENCH-SCALE EXPERIMENTS
COALESCENCE
HEAT TREATMENTS
ALLOYS
ELEMENTS
METALS
NIOBIUM ALLOYS
360101* - Metals & Alloys- Preparation & Fabrication
656102 - Solid State Physics- Superconductivity- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena- (-1987)