| 表面镀钨层对金刚石/铜复合材料热导率的影响 |
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| 引用本文： | 张纯,王日初,彭超群,蔡志勇,冯艳.表面镀钨层对金刚石/铜复合材料热导率的影响[J].稀有金属材料与工程,2016,45(10):2692-2696. |
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| 作者姓名： | 张纯 王日初 彭超群 蔡志勇 冯艳 |
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| 作者单位： | 中南大学,中南大学,中南大学,中南大学,中南大学 |
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| 摘 要： | 采用真空微蒸发-扩散镀技术,在金刚石表面镀覆不同厚度的钨层,并结合真空熔渗法制备金刚石铜复合材料。通过X射线衍射分析镀覆层相结构,采用扫描电镜观察镀覆层表面微观形貌和复合材料中金刚石与铜界面结合形貌,分析金刚石表面镀钨层组织、结构及厚度对金刚石/铜复合材料热导率的影响。结果表明:金刚石表面镀覆钨能改善与基体的润湿性;随着镀覆层均匀性和厚度增加,复合材料热导率先增加后减小;完整均匀的镀覆层可以获得较高界面热导。
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| 关 键 词： | 金刚石/铜复合材料 镀钨金刚石 界面热导 热导率 |
| 收稿时间： | 2014/8/11 0:00:00 |
| 修稿时间： | 2014/9/14 0:00:00 |
Effects of tungsten coating layer on thermal conductivity of diamond-copper compositese |
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| zhangchun,wangrichu,pengchaoqun,caizhiyong and fengyan.Effects of tungsten coating layer on thermal conductivity of diamond-copper compositese[J].Rare Metal Materials and Engineering,2016,45(10):2692-2696. |
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| Authors: | zhangchun wangrichu pengchaoqun caizhiyong and fengyan |
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| Affiliation: | Central South University,Central South University,Central South University,Central South Univercity,Central South Univercity |
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| Abstract: | The tungsten coating layers on diamond are obtained by a micro vacuum evaporation diffusion method, and the diamond copper composites are prepared by vacuum pressureless infiltration. The plating layer structure is analyzed with XRD, and the surface morphology of plating layer and the diamond/copper interface morphology in the composite materials are observed by scanning electron microscopy. The results indicate that the surface of diamond coated tungsten layer improves the wettability of the matrix. The thermal conductivity fist increases and then decreases with the increasing coating thickness. The full uniform plating layer on the diamond/copper interface has a high heat conductance. |
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| Keywords: | diamond/copper composite W-coated diamond heat conductivity thermal conductivity |
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