Publications (17)
Enhancement of transport critical current density of SmFeAsO1-xFx tapes fabricated by an ex-situ powder-in-tube method with a Sn-presintering process
Qianjun Zhang, Chao Yao, He Lin +10
SmFeAsO1-xFx (Sm1111) tapes were prepared by an ex-situ powder-in-tube method with a Sn-presintering process. Scanning electron microscopy revealed apparent difference in microstru…
A spherical harmonics method for processing anisotropic X-ray atomic pair distribution functions
Guanjie Zhang, Hui Liu, Jun Chen +2
A general spherical harmonics method is described for extracting anisotropic pair distribution functions (PDF) in this work. In the structural study of functional crystallized mate…
Atomic structure of the continuous random network of amorphous C[(C6H4)2]2, PAF-1
Guanqun Cai, He Lin, Ziqiang Zhao +11
We demonstrate that the amorphous material PAF-1, C[(C6H4)2]2, forms a continuous random network in which tetrahedral carbon sites are connected by 4,4'-biphenyl linkers. Experimen…
Effect of starting materials on the superconducting properties of SmFeAsO1-xFx tapes
Chunlei Wang, Chao Yao, Xianping Zhang +7
SmFeAsO1-xFx tapes were prepared using three kinds of starting materials. It shows that the starting materials have an obvious effect on the impurity phases in final superconductin…
Realization of practical level current densities in Sr0.6K0.4Fe2As2 tape conductors for high-field applications
Xianping Zhang, Chao Yao, He Lin +10
122 type pnictide superconductors are of particular interest for high-field applications because of their large upper critical fields Hc2 (> 100 T), low Hc2 anisotropy r (< 2), and…
Nonlinear Cooperative Control of Double Drone-Bar Transportation System
Peng Zhang, Yongchun Fang, Xiao Liang +2
Due to the limitation of the drone's load capacity, various specific tasks need to be accomplished by multiple drones in collaboration. In some transportation tasks, two drones are…
Fabrication and transport properties of Sr0.6K0.4Fe2As2 multifilamentary superconducting wires
Chao Yao, Yanwei Ma, Chengduo Wang +5
Seven-core Ag/Fe sheathed Sr0.6K0.4Fe2As2 (Sr-122) superconducting wires were produced by the ex situ powder-in-tube (PIT) method. The relationship between the cold-work deformatio…
Strongly enhanced current densities in Sr0.6K0.4Fe2As2 superconducting tapes
He Lin, Chao Yao, Xianping Zhang +6
Improving transport current has been the primary issue for practical application of superconducting wires and tapes. However, the porous nature of powder-in-tube (PIT) processed ir…
Critical current density and microstructure of iron sheathed multifilamentary Sr1-xKxFe2As2/Ag composite conductors
Chao Yao, He Lin, Qianjun Zhang +6
Iron-based superconductors have been considered to be very promising in high-field applications, for which multifilamentary wire and tape conductors with high mechanical strength a…
Giant negative thermal expansion covering room temperature in nanocrystalline GaNxMn3
Jianchao Lin, Peng Tong, Xiaojuan Zhou +11
Materials with negative thermal expansion (NTE), which contract upon heating, are of great interest both technically and fundamentally. Here, we report giant NTE covering room temp…
High critical current density in textured Ba-122/Ag tapes fabricated by scalable rolling process
Chiheng Dong, Chao Yao, He Lin +7
The industrial manufacturing of the long-length iron-pnictide wires and tapes requires simple and low-cost technology. Although the transport critical current density of the FeAs-1…
Large transport critical currents and magneto-optical imaging of textured Sr1-xKxFe2As2 superconducting tapes
Yanwei Ma, Chao Yao, Xianping Zhang +7
We report the temperature dependence of the transport critical current density (Jc) in textured Sr1-xKxFe2As2/Fe (Sr122) tapes fabricated by an ex situ powder-in-tube process. Crit…
SU(2) gluon propagator on a coarse anisotropic lattice
Ying Chen, Bing He, He Lin +1
We calculated the SU(2) gluon propagator in Landau gauge on an anisotropic coarse lattice with the improved action. The standard and the improved scheme are used to fix the gauge i…
Large transport Jc in Cu-sheathed Sr0.6K0.4Fe2As2 superconducting tape conductors
He Lin, Chao Yao, Haitao Zhang +5
Copper sheath is the first choice for manufacturing high-Tc superconducting wires and tapes because of its high electrical and thermal conductivities, low cost and good mechanical…
Vortex pinning and dynamics in high performance Sr0.6K0.4Fe2As2 superconductor
Chiheng Dong, He Lin, He Huang +7
We have studied vortex pinning and dynamics in a Sr0.6K0.4Fe2As2 superconducting tape with critical current density Jc~0.1 MA/cm2 at 4.2 K and 10 T. It is found that grain boundary…
DexJoCo: A Benchmark and Toolkit for Task-Oriented Dexterous Manipulation on MuJoCo
Hanwen Wang, Weizhi Zhao, Xiangyu Wang +11
Achieving human-level manipulation requires dexterous robotic hands capable of complex object interactions. Advancing such capabilities further demands standardized benchmarks for…
Hot pressing to enhance the transport Jc of Sr0.6K0.4Fe2As2 superconducting tapes
He Lin, Chao Yao, Xianping Zhang +9
High-performance Sr0.6K0.4Fe2As2 (Sr-122) tapes have been successfully fabricated using hot pressing (HP) process. The effect of HP temperatures (850-925 C) on the c-axis texture,…