Continuous W Cu functional gradient material from pure W to W Cu layer prepared by a modified sedimentation method

Wei Bangzheng; Zhou Rui; Xu Dang; Chen Ruizhi; Yu Xinxi; Chen Pengqi; Cheng Jigui

doi:10.1016/j.net.2022.08.002

추천

검색

자료유형: 학술저널

저자정보: Wei Bangzheng (School of Materials Science and Engineering, Hefei University of Technology,) Zhou Rui (School of Materials Science and Engineering, Hefei University of Technology,) Xu Dang (School of Materials Science and Engineering, Hefei University of Technology,) Chen Ruizhi (School of Materials Science and Engineering, Hefei University of Technology,) Yu Xinxi (School of Materials Science and Engineering, Hefei University of Technology,) Chen Pengqi (School of Materials Science and Engineering, Hefei University of Technology,) Cheng Jigui (School of Materials Science and Engineering, Hefei University of Technology,)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제54권 제12호

발행연도: 2022.12

수록면: 4,491 - 4,498 (8page)

DOI: 10.1016/j.net.2022.08.002

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

The thermal stress between W plasma-facing material (PFM) and Cu heat sink in fusion reactors can be significantly reduced by using a WeCu functionally graded material (WeCu FGM) interlayer. However, there is still considerable stress at the joining interface between W and WeCu FGM in the W/WeCu FGM/Cu portions. In this work, we fabricate W skeletons with continuous gradients in porosity by a modified sedimentation method. Sintering densification behavior and pore characteristics of the sedimented W skeletons at different sintering temperatures were investigated. After Cu infiltration, the final WeCu FGM was obtained. The results indicate that the pore size and porosity in the W skeleton decrease gradually with the increase of sintering temperature, but the increase of skeleton sintering temperature does not reduce the gradient range of composition distribution of the final prepared WeCu FGM. And WeCu FGM with composition distribution from pure W to W-20.5wt.% Cu layer across the section was successfully obtained. The thickness of the pure W layer is about one-fifth of the whole sample thickness. In addition, the prepared WeCu FGM has a relative density of 94.5 % and thermal conductivity of 185 W/ (m K). The WeCu FGM prepared in this work may provide a good solution to alleviate the thermal stress between W PFM and Cu heat sink in the fusion reactors.

#W skeleton #W #Cu composites #Continuously functional graded materials #Pure W layer #Porosity distribution

참고문헌 (0)

참고문헌 신청

참고문헌이 DBpia에서 서비스 중이라면, [참고문헌 신청]을 통해 등록해보세요

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!