| 利用W-Cu梯度层连接93W合金与无氧铜的实验研究 |
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| 引用本文： | 王传彬,曾浩,沈强,张联盟.利用W-Cu梯度层连接93W合金与无氧铜的实验研究[J].中国材料科技与设备,2008,5(5):51-53. |
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| 作者姓名： | 王传彬 曾浩 沈强 张联盟 |
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| 作者单位： | [1]新材料及其加工新技术广西壮族自治区重点实验室,广西桂林541004 [2]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070 |
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| 基金项目： | 新材料及其加工新技术广西壮族自治区重点实验室开放课题（063006-5C-21） |
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| 摘 要： | 针对“面向等离子体元件”对W—Cu复合材料的需求，进行了利用W—Cu梯度层连接93W合金与无氧铜的实验研究。首先选用Zn作为烧结助剂，采用粉末冶金方法热压烧结了不同W含量的W-Cu梯度层，研究了烧结温度、W含量对其致密度和微观结构的影响，确定了适宜的烧结条件为温度1123K，压力20MPa，保温时间60min。在该条件下制备的W-Cu梯度层的致密度大于96％，其物相为W、Cu，二者以机械混合形式共存。在此基础上，通过在93W合金与无氧铜之间加入三层W含量逐渐变化、无宏观界面的W—Cu梯度层，在梯度层致密烧结的同时，实现93W合金与无氧铜的连接。
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| 关 键 词： | W-Cu 梯度层 烧结 |
Joining of 93W Alloy to Oxygen-Free-Copper by W-Cu Gradient Layers |
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| Affiliation: | WANG Chuan-bin, ZENG Hao , SHEN Qiang, ZHANG Lian-meng (1. Guangxi Key Laboratory for the Advance Materials and New Preparation Technology,Guangxi, Guilin, 541004; 2. State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Hubei, Wuhan, 430070) |
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| Abstract: | A joint of 93W alloy to oxygen-free-copper, which can be used as plasma facing component for fusion reactors, was prepared by W-Cu gradient layers. By using zinc elemental powder as the sintering aid, W-Cu gradient layers with tungsten contents of 30-40wt% were hot pressed, reaching a high relative density （〉 96%） at 1123K-20MPa-60min. XRD and SEM measurements showed that the sintered composites were the mechanical mixtures of W and Cu grains. Then by inserting three W-Cu gradient layers, 93W alloy and oxygen-free-copper were joined. The W-Cu gradient layers were wholly dense without macro interfaces, whose composition and structure changed gradually. |
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| Keywords: | W-Cu Gradient layer Sintering |
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