Study on the effect of vacuum fusion infiltration technology on the properties of tungsten/copper joining interface

Hao-Jie Zhang; Xue-qin Tian; Xiao-Yu Ding; Hui-Yun Zheng; Lai-Ma Luo; Yu-Cheng Wu; Jian-Hua Yao

Nuclear Engineering and Technology (Jun 2024)

Study on the effect of vacuum fusion infiltration technology on the properties of tungsten/copper joining interface

Hao-Jie Zhang,
Xue-qin Tian,
Xiao-Yu Ding,
Hui-Yun Zheng,
Lai-Ma Luo,
Yu-Cheng Wu,
Jian-Hua Yao

Affiliations

Hao-Jie Zhang: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou, 310014, China; Collaborative Innovation Center of High-end Laser Manufacturing Equipment (National “2011 Plan”), Zhejiang University of Technology, Hangzhou, 310014, China
Xue-qin Tian: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou, 310014, China; Collaborative Innovation Center of High-end Laser Manufacturing Equipment (National “2011 Plan”), Zhejiang University of Technology, Hangzhou, 310014, China
Xiao-Yu Ding: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou, 310014, China; Corresponding author. Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou, 310014, China.
Hui-Yun Zheng: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou, 310014, China; Collaborative Innovation Center of High-end Laser Manufacturing Equipment (National “2011 Plan”), Zhejiang University of Technology, Hangzhou, 310014, China
Lai-Ma Luo: School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China; Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei, 230009, China
Yu-Cheng Wu: School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China; Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei, 230009, China
Jian-Hua Yao: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou, 310014, China; Collaborative Innovation Center of High-end Laser Manufacturing Equipment (National “2011 Plan”), Zhejiang University of Technology, Hangzhou, 310014, China

Journal volume & issue: Vol. 56, no. 6
pp. 2367 – 2374

Abstract

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In this paper, based on the need for high-strength connections between all-tungsten-oriented plasma materials and thermal sinking materials of copper and its alloys in nuclear fusion devices, a study on the effect of tungsten surface laser micro structuring on the interfacial bonding properties of W/Cu joints was carried out. In the experiment, the connectors were prepared by vacuum fusion infiltration technology, and the effects of microgroove structure on the mechanical and thermal conductivity of W/Cu connectors were investigated under different parameters (including microgroove pitch, microgroove depth, and microgroove taper). The maximum shear strength is 126.0 MPa when the pitch is 0.15 mm and the depth is 34 μm. In addition, the negative taper structure, i.e., the width of the entrance of the microstructure is smaller than the width of the interior of the microstructure, is also investigated. The shear tests show that there is an approximately linear relationship between the shear strength of W/Cu and taper. Compared with the positive taper, the shear strength of the samples with the same morphological density and depth of the tungsten surface is significantly higher.

Published in Nuclear Engineering and Technology

ISSN: 1738-5733 (Print)
Publisher: Elsevier
Country of publisher: Korea, Republic of
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-engineering-and-technology

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