IEC 61788-18:2013
超导性.第18部分:机械特性测量.银和/或银合金护套的铋-2223和铋-2212复合超导体的室温拉伸试验

Superconductivity - Part 18: Mechanical properties measurement - Room temperature tensile test of Ag- and/or Ag alloy-sheathed Bi-2223 and Bi-2212 composite superconductors

标准号

IEC 61788-18:2013

发布

2013年

发布单位

国际电工委员会

当前最新

IEC 61788-18:2013

 

 

被代替标准

IEC 90/326/FDIS:2013

适用范围

This International Standard specifies a test method detailing the tensile test procedures to be carried out on Ag/Bi-2223 and Ag/Bi-2212 superconductive composite wires at room temperature. This test is used to measure the modulus of elasticity and to determine the 0@2 % proof strength. When the 0@2 % proof strength could not be determined due to earlier failure@ the stress level at apparent strains of 0@05 %@ 0@1 %@ 0@15 %@ 0@2 %@ 0@25 % with increment of 0@05 % is measured. The values for elastic limit@ fracture strength@ percentage elongation after fracture and the fitted type of 0@2 % proof strength serve only as a reference (see Clauses A.4@ A.5@ A.6 and A.10). The sample covered by this test procedure should have a round or rectangular cross-section with an area of 0@3 mm2 to 2@0 mm2 (corresponding to the tape-shaped wires with width of 2@0 mm to 5@0 mm and thickness of 0@16 mm to 0@4 mm).

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