Shanghai Jiaotong University

Shanghai Superconductor Technology Co., Ltd.

Supermag Technology (shanghai) Co., Ltd.

Guangyu Jiang

Yue Zhao

Chunsheng Cheng

Wei Wu

Zhijian Jin

Jiamin Zhu

Donghong Wu

Yijun Ding

A preparation device for an alloy target includes a material nozzle, a high-energy laser, and a target support substrate, the material nozzle and the high-energy laser are respectively arranged above the target support substrate. The preparation device uses the material nozzle to spray the material powder required for the alloy target to be prepared, the injection efficiency is independently adjusted to achieve the purpose of non-fixed composition of the alloy target, and the spatial position and angle of the material nozzle are independently adjusted to ensure uniform composition and density of the target, the high-energy laser beam generated by the high-energy laser is used to heat the material powder in the spraying area to form a target coating of the required composition, the target support substrate is used to support the target coating formed by the material powder.

Preparation device and preparation method for alloy targets

A second-generation high temperature superconducting (HTS) strip and a preparation method thereof are provided. The second-generation HTS strip includes a superconducting strip body and a stabilizing layer arranged thereon. The stabilizing layer is a copper-graphene composite film with a total thickness of 2-30 microns on one side. The superconducting strip may be obtained by the preparation method of: (1) putting a superconducting strip body into a magnetron sputtering reaction chamber, followed by pumping to a high-level vacuum and filling with a working gas; (2) using copper and graphene as targets, and performing a sputter coating by controlling a magnetron sputtering power, to deposit the targets onto at least one surface of the superconducting strip body. The prepared HTS strips containing copper-graphene stabilizing layer with high strength and high conductivity may have 30%-70% higher tensile strength than conventional copper plated superconducting strips, with less than 10% IACS attenuation in conductivity.

Second-generation HTS strip and preparation method thereof

Growing community of inventors

SHANGHAI, China

Guangyu Jiang