發(fā)布時(shí)間：2018-09-12 06:07

【摘要】：本研究以Cu10Ni合金作為基體材料,采用組裝法制備了銅比1.8,Φ0.7 mm的快脈沖超導(dǎo)磁體用NbTi超導(dǎo)線材.研究了Cu10Ni合金、時(shí)效次數(shù)和最終應(yīng)變、去應(yīng)力退火對(duì)快脈沖超導(dǎo)磁體用NbTi/Cu超導(dǎo)線微觀組織和臨界電流密度的影響.實(shí)驗(yàn)結(jié)果表明:采用Cu10Ni合金作為基體,時(shí)效3次且最終應(yīng)變?cè)?.5-5.0之間時(shí),線材最終應(yīng)變?cè)龃?臨界電流密度呈先增大而后降低,最終趨于穩(wěn)定的變化規(guī)律;最終應(yīng)變?yōu)?.37時(shí),隨著熱處理次數(shù)的增加,臨界電流密度呈先增大而后降低的趨勢(shì),斷線次數(shù)也隨之明顯增多.損耗的測(cè)試結(jié)果表明:采用Cu10Ni合金為基體制備的超導(dǎo)線材的損耗要明顯小于無(wú)氧銅基體的超導(dǎo)線材.經(jīng)過(guò)3次時(shí)效熱處理且最終應(yīng)變?yōu)?.37時(shí),Cu10Ni合金為基體制備的超導(dǎo)線材其臨界電流密度最高為2308A/mm~2(4.2K,5T,判據(jù)0.1μV/cm),損耗為40.8mJ/cm~3,(±3T,4.2K).
[Abstract]:In this study, NbTi superconducting wires for fast pulse superconducting magnets with copper ratio of 1.8 and 桅 0.7 mm were prepared by assembly method using Cu10Ni alloy as substrate. The effects of aging times, final strain and stress removal annealing on the microstructure and critical current density of NbTi/Cu superconductors for fast pulse superconducting magnets were investigated. The experimental results show that when Cu10Ni alloy is used as the matrix, the final strain of wire rod increases, the critical current density increases first, then decreases, and the final strain is 4.37 when the final strain is 3.5-5.0, when the aging time is 3 times, and the final strain is between 3.5-5.0, the critical current density increases first and then decreases, and the final strain is 4.37. With the increase of heat treatment times, the critical current density increases first and then decreases, and the breaking times increase obviously. The results show that the loss of superconducting wire prepared by Cu10Ni alloy is obviously lower than that of copper without oxygen. The critical current density of superconducting wire prepared by three aging heat treatment and final strain 4.37 is 2308A/mm~2 (4.2kg ~ 5T, criterion 0.1 渭 V/cm), and the loss is 40.8mJ / cm ~ (-3), (鹵3T ~ (4.2K).
【作者單位】： 西安歐中材料科技有限公司;西部超導(dǎo)材料科技股份有限公司;西北有色金屬研究院;
【基金】：國(guó)家國(guó)際科技合作專項(xiàng)項(xiàng)目(2015DFR50010)資助的課題~~
【分類號(hào)】：TM26

【相似文獻(xiàn)】

相關(guān)期刊論文 前6條

1 趙選蘭;中空復(fù)合NbTi超導(dǎo)體研制簡(jiǎn)介[J];低溫物理;1980年01期

2 劉向宏,周廉,吳曉祖;NbTi超導(dǎo)體的新進(jìn)展──(Ⅰ)常規(guī)NbTi超導(dǎo)體[J];鈦工業(yè)進(jìn)展;2000年05期

3 肖新星;;NbTi超導(dǎo)材料及其產(chǎn)業(yè)化前景分析[J];科技和產(chǎn)業(yè);2012年09期

4 南和禮;螺管型NbTi儲(chǔ)能磁體的優(yōu)化及尺寸效應(yīng)[J];低溫物理學(xué)報(bào);2004年02期

5 李建峰;張平祥;劉向宏;李金山;馮勇;王天成;杜社軍;劉維濤;;磁體用NbTi超導(dǎo)體的研究進(jìn)展[J];材料導(dǎo)報(bào);2009年03期

6 ;[J];;年期

相關(guān)碩士學(xué)位論文 前3條

1 陶志勇;針對(duì)NBTI效應(yīng)的超大規(guī)模集成電路老化研究[D];合肥工業(yè)大學(xué);2014年

2 聞昌;基于ECC電路的軟錯(cuò)誤修復(fù)和測(cè)試診斷NBTI錯(cuò)誤方法研究[D];哈爾濱工業(yè)大學(xué);2016年

3 羅勇;納米CMOS器件的NBTI效應(yīng)及其物理模型[D];復(fù)旦大學(xué);2009年

，

本文編號(hào)：2238133