Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references <br>3 Terms and definitions<br>4 Principle <br>5 Requirements <br>6 Apparatus<br>&nbsp;&nbsp;&nbsp;6.1 Reaction mandrel material <br>&nbsp;&nbsp;&nbsp;6.2 Reaction mandrel construction<br>&nbsp;&nbsp;&nbsp;6.3 Measurement mandrel material <br>&nbsp;&nbsp;&nbsp;6.4 Measurement mandrel construction <br>&nbsp;&nbsp;&nbsp;6.5 Measurement set up <br>7 Specimen preparation<br>&nbsp;&nbsp;&nbsp;7.1 Specimen mounting for reaction heat treatment <br>&nbsp;&nbsp;&nbsp;7.2 Reaction heat treatment <br>&nbsp;&nbsp;&nbsp;7.3 Specimen mounting for measurement <br>&nbsp;&nbsp;&nbsp;7.4 Specimen bonding<br>8 Measurement procedure<br>9 Precision and accuracy of the test method<br>&nbsp;&nbsp;&nbsp;9.1 Critical current<br>&nbsp;&nbsp;&nbsp;9.2 Temperature<br>&nbsp;&nbsp;&nbsp;9.3 Magnetic field<br>&nbsp;&nbsp;&nbsp;9.4 Specimen support structure<br>&nbsp;&nbsp;&nbsp;9.5 Specimen protection <br>10 Calculation of results<br>&nbsp;&nbsp;&nbsp;10.1 Critical current criteria<br>&nbsp;&nbsp;&nbsp;10.2 n-value (optional calculation, refer to A.7.2) <br>11 Test report <br>&nbsp;&nbsp;&nbsp;11.1 Identification of test specimen <br>&nbsp;&nbsp;&nbsp;11.2 Report of I[c] values <br>&nbsp;&nbsp;&nbsp;11.3 Report of test conditions<br>Annex A (informative) Additional information relating to <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Clauses 1 to 10 <br>Annex B (informative) Strain effect of Nb[3]Sn conductors <br>Annex C (informative) Self-field effect <br>Annex D (normative) One-mandrel method <br>Bibliography

Abstract

Covers a test method for the determination of the d.c. critical current of Nb[3]Sn composite superconductors which are fabricated by either the bronze process or the internal tin diffusion process and have a copper/non-copper ratio larger than 0,2.

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Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 90