镓基液态金属热界面材料的性能研究
Investigation on the Performance of Gallium Based Liquid Metal Thermal Interface Materials

高云霞 ¹ 刘静 ² 王先平 ¹ 方前锋 ¹

文摘	采采用微氧化法制备Ga基室温液态金属热界面材料。实验结果表明,微量氧化镓的存在可显著改善液态金属的润湿性,且GaIn10合金热界面材料具有较高的热导率(约19.2 W·m~(-1)·K~(-1))。搭建接触传热测试平台,分别研究液态金属Ga及其二元、三元合金热界面材料的导热性能,对比市售导热硅脂,该新型镓基热界面材料,特别是其二元合金热界面材料,在大功率下工作时热源温度相对于导热硅脂下降近14°C,界面热阻只有5.4 Kmm~2/W,显示出更加优越的导热性能。
其他语种文摘	The gallium alloy based thermal interface materials (TIMs) were synthesized by a micro-oxidation reaction method. The experimental results indicated that the existence of Ga_2O_3 could effectively improve the wettability of gallium alloys with other materials and the measured highest thermal conductivity was as high as 19.2 Wm~(-1)K~(-1) for GaIn10 based TIMs at room temperature. An experimental apparatus was designed to measure the thermal resistance across the gallium and its alloys based TIMs under steady-state conditions. The temperature of heat source of this novel gallium based TIMs, especially for that of GaIn10 based TIMs, decreasesed by 14°C and the thermal interface resistance was as low as 5.4 Kmm~2/W. Gallium based TIMs were believed to have remarkable advantages over already commercialized thermal interface materials with regard to higher thermal conductivity, lower thermal resistance, and better adhesion.
来源	工程热物理学报 ,2017,38(5):1077-1081 【核心库】
关键词	镓基多元合金 ; 室温液态金属 ; 热界面材料 ; 热导率 ; 界面热阻
地址	1. 中国科学院固体物理研究所, 中国科学院材料物理重点实验室, 合肥, 230031 2. 中国科学院理化技术研究所, 中国科学院低温工程学重点实验室, 北京, 100190
语种	中文
文献类型	研究性论文
ISSN	0253-231X
学科	能源与动力工程
基金	国家自然科学基金项目
文献收藏号	CSCD:5980675