Standard No.:	GB/T 42472-2023
English Name:	Critical current measurement―Retained critical current after double bending at room temperature of Ag-sheathed Bi-2223 superconducting wires
Chinese Name:	临界电流测量 银包套Bi-2223超导线室温双弯曲后的保留临界电流
Chinese Classification:	H21;K11
Professional Classification:	GB    National Standard
Issued by:	SAMR; SAC
Issued on:	2023-03-17
Implemented on:	2023-10-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	10500 words
Price(USD):	315.00
Delivery:	via email in 1~5 business day

本文件描述了Bi-2223氧化物超导体短直样品室温双弯曲后临界电流的测试方法。样品为具有扁平或方形结构的单芯或多芯银和/或银包套超导线材。超导线材可以采用铜合金、不锈钢或镍合金带叠层封装。
本文件适用于临界电流小于300 A、n-值大于5的超导体。室温双弯曲后临界电流的测试在无外加磁场的条件下进行，样品浸泡在开放液氮中。