Nb3Sn strands with enhanced properties at high field for economically viable 1 GHz magnetic resonance magnets

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Forschungsstelle

INNOSUISSE

Projektnummer

9049.1;6 PFIW-IW

Projekttitel

Nb3Sn strands with enhanced properties at high field for economically viable 1 GHz magnetic resonance magnets

Projekttitel Englisch

Nb3Sn strands with enhanced properties at high field for economically viable 1 GHz magnetic resonance magnets

Texte zu diesem Projekt

	Deutsch	Französisch	Italienisch	Englisch
Kurzbeschreibung	-	-	-
Abstract	-	-	-

Erfasste Texte

Kategorie	Text
Kurzbeschreibung (Englisch)	Nb3Sn strands with enhanced properties at high field for economically viable 1 GHz magnetic resonance magnets
Abstract (Englisch)	Aiming at ultimately enabling the design and fabrication of economically viable 1 GHz NMR magnets our goal is to develop internal Sn and bronze route Nb3Sn conductors with enhanced current carrying capabilities, stronger mechanical behavior and reduced cost for generating 23.5T (corresponding to 1GHz) at 2K. We will develop internal Sn route Nb3Sn wires using innovative, dopant containing Sn sources. In virtue of their higher critical current density, these wires will be aimed at the highest range of magnetic fields, ranging from 17 to 23.5T. Bronze route Nb3Sn wires based on high-Sn content Cu-Sn alloys will be prepared by using an innovative hot drawing technique. This will allow the reduction of the number of intermediate anneals that are currently employed for bronze route Nb3Sn wires. These wires will be used to wind the coil sections that are exposed to intermediate magnetic fields of 12-17T, where the mechanical stresses caused by the Lorentz forces are the highest, reaching 250 MPa. The wires developed during this project will be fully characterized in terms of the dependence of their critical current density on magnetic field and applied mechanical stresses, uniaxial tensile and transverse compressive, respectively.

Kategorie

Text

Kurzbeschreibung
(Englisch)

Nb3Sn strands with enhanced properties at high field for economically viable 1 GHz magnetic resonance magnets

Abstract
(Englisch)

Aiming at ultimately enabling the design and fabrication of economically viable 1 GHz NMR magnets our goal is to develop internal Sn and bronze route Nb3Sn conductors with enhanced current carrying capabilities, stronger mechanical behavior and reduced cost for generating 23.5T (corresponding to 1GHz) at 2K. We will develop internal Sn route Nb3Sn wires using innovative, dopant containing Sn sources. In virtue of their higher critical current density, these wires will be aimed at the highest range of magnetic fields, ranging from 17 to 23.5T. Bronze route Nb3Sn wires based on high-Sn content Cu-Sn alloys will be prepared by using an innovative hot drawing technique. This will allow the reduction of the number of intermediate anneals that are currently employed for bronze route Nb3Sn wires. These wires will be used to wind the coil sections that are exposed to intermediate magnetic fields of 12-17T, where the mechanical stresses caused by the Lorentz forces are the highest, reaching 250 MPa. The wires developed during this project will be fully characterized in terms of the dependence of their critical current density on magnetic field and applied mechanical stresses, uniaxial tensile and transverse compressive, respectively.