The Resistance and Strength of Soft Solder Splices between Conductors in MICE Coils

Journal Article · Tue Aug 03 04:00:00 EDT 2010 · IEEE Transactions on Applied Superconductivity

OSTI ID:988860

Wu, Hong; Pan, Heng; Green, Michael A; Dietderich, Dan; Gartner, T E; Higley, Hugh C; Mentink, M; Xu, FengYu; Trillaud, F; Liu, X K; Wang, Li; Zheng, S X; Tam, D G

Two of the three types of MICE magnets will have splices within their coils. The MICE coupling coils may have as many as fifteen one-meter long splices within them. Each of the MICE focusing coils may have a couple of 0.25-meter long conductor splices. Equations for the calculation of resistance of soldered lap splices of various types are presented. This paper presents resistance measurements of soldered lap splices of various lengths. Measured splice resistance is shown for one-meter long splices as a function of the fabrication method. Another important consideration is the strength of the splices. The measured breaking stress of splices of various lengths is presented in this paper. Tin-lead solders and tin-silver solders were used for the splices that were tested. From the data given in this report, the authors recommend that the use of lead free solders be avoided for low temperature coils.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Accelerator& Fusion Research Division; Engineering Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 988860
• Report Number(s): LBNL-3928E
• Journal Information: IEEE Transactions on Applied Superconductivity, Journal Name: IEEE Transactions on Applied Superconductivity Vol. 21
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BONDING
COOLING
ELECTRIC COILS
ELECTRIC CONDUCTIVITY
FABRICATION
FOCUSING
MAGNETS
MECHANICAL PROPERTIES
MUONS
SOLDERED JOINTS