|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A water-free metal organic deposition method for YBa2Cu3O7?δ thin film fabrication显示文摘 | Rongxia Huang Feng Feng Wei Wu Yunran Xue Yanyi Zhang Kai Shi Timing Qu Yongjie Zhao Xiaohao Wang Xiaowen Zhang Zhenghe Han | 2013 | Superconductor Science and Technology2013，，： | 1 |
| 2 | A novel aluminum-carbon nanotubes nanocomposite with doubled strength and preserved electrical conductivity显示文摘Enhancing the mechanical strength of highly conductive pure metals usually causes significant reduction in their electrical conductivity.For example,introducing phase/matrix interfaces or more grain boundaries,are common and effective methods to strengthen metals.But it simultaneously increases the electron scattering at the interface,thus reducing the electrical conductivity.In this study,we demonstrate that pure aluminum(Al)/carbon nanotubes(CNTs)nanocomposites prepared by friction stir processing have successfully broken through these limitations.The yield strength and tensile strength of Al/CNTs nanocomposites have improved by 104.7%and 51.8%compared to pure Al,while the electrical conductivity remained comparable to that of pure Al.To explore the potential mechanisms,the interface between CNTs and Al was examined and characterized by transmission electron microscopy(TEM)and Raman spectroscopy.Little interfacial reaction compounds were present and no visible physical gaps were observed at CNTs and Al interfaces.We defined it as a clean and tightly bonded interface.Although the quantity of phase interface has increased,the electrical conductivity of the nanocomposite remains approximately unchanged.We attribute the preserved electrical conductivity to the clean and tightly bonded CNTs/Al interface in the nanocomposite. | Shuai Zhang Gaoqiang Chen Timing Qu Jinquan Wei Yufan Yan Qu Liu Mengran Zhou Gong Zhang Zhaoxia Zhou Huan Gao Dawei Yao Yuanwang Zhang Qingyu Shi Hua Zhang | 2021 | Nano Research2021，14，8： | 1 |
| 3 | Comparative study on the critical current performance of Bi-2223/Ag and YBCO wires in low magnetic fields at liquid nitrogen temperature 显示文摘 | Feng Feng Qu Timing Gu Cheng | 2011 | Physica C:Superconductivity2011，471，910： | 1 |
| 4 | The study of a rotating method for fabricating Y1 Ba2 Cu3O7-x films by TFA-MOD显示文摘 | Chen Huan Feng Feng Qu Timing | | 0，，15： | 1 |
| 5 | Effect of edge cracks on critical current degradation in REBCO tapes under tensile stress显示文摘The slitting process for manufacturing REBa2Cu3O7δ(REBCO,RE=Rare earth)tapes of required width significantly improves the production efficiency and reduces production costs.However,edge cracks induced by the slitting process of wide REBCO tapes may cause premature degradation under high tensile stress in highfield magnets.Therefore,it is necessary to evaluate the effect of edge cracks of REBCO tapes on the critical current(Ic)degradation.Firstly,Ic degradation under artificial cracks was measured to validate the applicability of linear elastic fracture mechanics for the REBCO layer.The maximum circumferential stress criterion was used to derive the mixed-mode stress intensity factor of multiple oblique edge cracks.A semi-analytical model considering edge crack properties such as angleβ,spacing d,and length a,was built to evaluate the critical load and critical crack.We found that when the stress intensity factor at the crack tip is below KIC?2:3 MPa ffiffiffiffim p,edge cracks did not propagate.We examined commercial REBCO tapes manufactured by two different processes,concluding that edge cracks in these tapes will not cause premature degradation. | Zhirong Yang Yi Li Peng Song Mingzhi Guan Feng Feng Timing Qu | 2022 | Superconductivity2022，，1： | 0 |
| 6 | Investigation on drawing process of Bi-2223/Ag wires using racetrack-type dies:Simulation and experiments显示文摘The traditional rolling process of Bi-2223/Ag wires with circular sections is an inhomogeneous process. For the purpose of achieving a uniform filaments distribution, a novel technique for round wire through racetrack-type dies during the last several passes of drawing is necessarily brought forward. In order to investigate the processing behaviors of superconducting filaments, a numerical model for the three passes of racetrack drawing was constructed, and subsequently, the optimization of three racetrack-type dies was designed based on the simulation results. Then the three passes of racetrack drawing was applied to fabricate Bi-2223/Ag tape and the density distribution of each filament of the wire was studied by Vickers microhardness. The experimental results showed that the racetrack drawing can obtain dense superconducting filaments, and improve the mechanical properties and critical current of the final tape. | LU YongJin ZENG Pan LEI LiPing QU TiMing FANG Gang SUN JianFeng | 2009 | Science China(Technological Sciences)2009，52，8： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员