柔性铜镍合金基带的织构及其磁性研究(英文)  

BIAXIALLY TEXTURE AND MAGNETISM IN Cu-Ni ALLOY FOR SUBSTRATES OF SUPERCONDUCTOR COATED CONDUCTORS

作　　者：范峰[1] 鲁玉明[1] 刘志勇[1] 高波[1] 应利良[1] 刘金磊[1] 蔡传兵[1] 

机构地区：[1]上海大学物理系,上海200444

出　　处：《低温物理学报》2009年第2期102-106,共5页Low Temperature Physical Letters

基　　金：supported by the National Natural Science Foundation of China (Grant No.50672057 50702033);the Shanghai Leading Academic Disciplines Program (Grant No.T0104);the Science and Technology Commission of Shanghai Municipality (Grant No. 0752nm017);the Project Based Per-sonal Exchange Programme with China and German(PPP)(Grant No.[2006] 3139)

摘　　要：研究了Cu60-Ni40wt%(简称Cu60)和Cu40-Ni60wt%(简称Cu40)两种不同组分的铜镍合金基带在不同温度下退火织构的形成过程,其中名义组分为Cu60-Ni40wt%的合金在650～1000℃退火一小时可获得良好的(001)织构.半高宽随着退火温度的升高而下降.1000℃退火后Φ扫描的半高宽(FWHM)为5.5°,ω扫描的半高宽为6.1°.组分为Cu60-Ni40wt%的合金1150℃退火仍不能形成良好的织构.对于Cu40居其里温度点在室温以上,饱和磁矩大于Ni-at.%5W;而Cu60的居里温度点在20K,在77K下表现顺磁性质,其饱和磁矩仅为Ni-at.%5W基带的10%.在77K下Cu60的电阻为7.5×10-9Ω·m,比Ni-at.%5W的电阻要低的多.The development of biaxial texture of two types of Cu-Ni alloys with nominal composition of Cu60- Ni40wt% （Cu60 for short） and Cu40-Ni60wt% （Cu40 for short）, has been studied at different tempera- tures. The （001） cube texture of Cu60-Ni40wt% alloy are easily recrystallized after annealing at 650-1000℃ for 1 hour. The full width half maximums （FWHMs） decrease as the annealing temperature in- creases. The FWHM of 5.5° for phi scans and 6. 1 ° for omega scans are observed when annealed at 1000℃. The Cu40-Ni60wt% alloy does not show the high cube texture even annealed at 1150℃. For the sample of Cu40, the Curie temperature of Cu40 is higher than the room temperature, and the saturation magnetization is larger than that of Ni-Sat% W. In contrast, the Cu60 ahoy shows a Curie temperature of 20K,being paramagnetic at 77K with 90% less saturation magnetization than that of Ni-5at% W. The resistivity of Cu60 is 7.5 ×10^-9Ω·m at 77K, much lower than that of Ni-5at% W.

关 键 词：辊轴再结晶技术 双轴织构 涂层导体 铜镍合金 

分 类 号：O482.5[理学—固体物理]