IEC 61788-18:20 13规定了一种测试方法，详细描述了在室温下对Ag/Bi-2223和Ag/Bi-2212超导复合线进行的拉伸测试程序。该测试用于测量弹性模量并确定0.2%的抗弯强度。当由于早期破坏而无法确定0.2%强度时，测量0.05%、0.1%、0.15%、0.2%、0.25%表观应变下的应力水平，增量为0.05%。弹性极限、断裂强度、断裂后伸长率的值和0.2%强度的拟合类型仅供参考。本测试程序覆盖的样品应具有圆形或矩形横截面，面积为0.3 mm2至2.0 mm2（对应于宽度为2.0 mm至5.0 mm、厚度为0.16 mm至0.4 mm的带状导线）。 关键词:超导性，力学性能测量

IEC 61788-18:2013 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. 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). Key words: superconductivity, mechanical properties measurement