摘要
研究了固态反应法制备 Bi_(2-x)Pb_xSr_2Ca_2Cu_3O_(10+y)超导体材料的成形压力与材料织构和临界电流的关系。随单向成形压力的提高,样品织构增强,在垂直于压力方向上临界电流密度 J_c 急剧增大而在平行于压力方向上 J_c 逐渐减小,表现出明显的各向异性特征。
The relation of forming pressure to the textured structure and critical current density of Bi2-xPbxSr2Ca2Cu3O10+y superconducting bulk materials prepared by solid reaction method was studied. With the increasing of uniaxial pressure, the textured structure became stronger , and the critical current density Jc in the direction perpendicular to the pressure increased sharply, while Jc along the pressure direction decreased gradually, which indicated obvious anisotropic characteristics.
出处
《低温与超导》
CAS
CSCD
北大核心
1990年第4期51-56,共6页
Cryogenics and Superconductivity
