摘要
Ni-W合金是制备YBa2Cu3O7-δ高温超导线(带)材的优良基带材料,对Ni-W基带要求是具有强的立方织构{100}〈001〉。本工作采用放电等离子体烧结方法制备Ni-W合金,利用轧制辅助双轴织构基带技术(RABiTS)制备Ni-W合金基带。利用X射线衍射方法研究基带冷轧织构与W含量的关系,系统地研究了Ni-5%W基带的再结晶织构。研究结果表明:Ni-5%W基带是一较好的组分,通过大的冷轧形变量、较高的退火温度和两步退火的方式,有利于在Ni-5%W基带中形成单一的、强的立方织构。
Ni-W alloys are the most excellent substrate materials for high temperature superconducting YBa2 Cu3 O7-δ. In order to obtain high current density, strong cube texture must be formed in Ni-W substrates. Ni-W alloys were fabricated by spark plasma sintering system. The Ni-W substrates were obtained by the method of rolling assisted biaxially textured substrates（RABITS）. Cold rolling and recrystallisation textures were studied systematically by X-ray. The results show that the heavier cold rolling reduction, higher temperature of annealing and a two-step recrystallisation annealing are beneficial to forming of cube texture in Ni-W substrates.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2007年第2期137-141,共5页
Atomic Energy Science and Technology
基金
国家"863"基金资助项目(2002AA306221)
关键词
放电等离子体烧结
Ni—W基带
冷轧织构
再结晶织构
spark plasma sintering
Ni-W substrates
cold rolling textures
recrystallisation textures
