%0 Journal Article
%T ACOUSTIC EMISSION IN Nb-Ti SUPERCONDUCTORS<br>Nb-Ti超导体的声发射
%A JIAO ZHENG-KUAN
%A CHEN ZHUO-MIN
%A DING LI-REN
%A WANG EN-YUE
%A WANG QIAN
%A ZHENG ZHI-QIN
%A <br>焦正宽
%A 陈灼民
%A 丁立人
%A 王恩跃
%A 王谦
%A 郑志钦
%J 物理学报
%D 1984
%I 
%X In this paper, we present experimental results of acoustic emission in bare Nb-Ti single core superconductor and multifilamentary superconducting composite, which have undergone different excitation procedure in Si-rubber potted and dry modes.We have found that AE signals are chiefly generated by conductor motion or flux-ju-inping, but not by flux motion. The starting driving force for motion in Si-rubber potted sample is an order of magnitude higher than that in dry sample.Acoustic emission technique is a possible means for monitoring magnet quench as conductor goes through a series of microslip (or incomplete flux jump) before macromotion.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=A0E469B149B6962201F29E90AE806636&yid=36250D1D6BDC99BD&vid=27746BCEEE58E9DC&iid=E158A972A605785F&sid=BB98BB04E861B6F5&eid=FD207D3C5E9776FA&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0