Changchun Ge, Zhangjian Zhou, Jiangtao Li, Xiang Liu, and Zhengyu Xu, Fabrication of W/Cu and Mo/Cu FGM as Plasma-facing Materials, J. Univ. Sci. Technol. Beijing, 7(2000), No. 2, pp. 122-125.
Cite this article as:
Changchun Ge, Zhangjian Zhou, Jiangtao Li, Xiang Liu, and Zhengyu Xu, Fabrication of W/Cu and Mo/Cu FGM as Plasma-facing Materials, J. Univ. Sci. Technol. Beijing, 7(2000), No. 2, pp. 122-125.
Changchun Ge, Zhangjian Zhou, Jiangtao Li, Xiang Liu, and Zhengyu Xu, Fabrication of W/Cu and Mo/Cu FGM as Plasma-facing Materials, J. Univ. Sci. Technol. Beijing, 7(2000), No. 2, pp. 122-125.
Citation:
Changchun Ge, Zhangjian Zhou, Jiangtao Li, Xiang Liu, and Zhengyu Xu, Fabrication of W/Cu and Mo/Cu FGM as Plasma-facing Materials, J. Univ. Sci. Technol. Beijing, 7(2000), No. 2, pp. 122-125.
Laboratory of Special Ceramics and Powder Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
Southwest Institute of Nuclear Physics, Chengdu 610041, China
中文摘要
W/Cu Functionally Graded Materials (FGM) was designed not only for reducing the thermal stress caused by the mismatch of thermal expansion coefficients, but also for combining the features of W, Mo-high plasma-erosion resistance and the advantages of Cu-high heat conductivity and ductility. Four different fabrication processes for W/Cu or Mo/Cu, including hot-pressing, Cu infiltration of sintered porosity-graded W skeleton, spark plasma sintering and plasma spraying, were investigated and compared. It was found that the hot-pressing process is difficult to keep the designed composition gradient, while the other three processes are successful in making W/Cu or Mo/Cu FGM. Meanwhile, microstructures and composition gradients are analyzed with SEM and EDAX.
W/Cu Functionally Graded Materials (FGM) was designed not only for reducing the thermal stress caused by the mismatch of thermal expansion coefficients, but also for combining the features of W, Mo-high plasma-erosion resistance and the advantages of Cu-high heat conductivity and ductility. Four different fabrication processes for W/Cu or Mo/Cu, including hot-pressing, Cu infiltration of sintered porosity-graded W skeleton, spark plasma sintering and plasma spraying, were investigated and compared. It was found that the hot-pressing process is difficult to keep the designed composition gradient, while the other three processes are successful in making W/Cu or Mo/Cu FGM. Meanwhile, microstructures and composition gradients are analyzed with SEM and EDAX.
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