轻质复合材料及结构热膨胀调控设计研究进展

发布时间：2018-04-14 05:02

本文选题：复合材料 + 热膨胀调控　；参考：《科学通报》2017年01期

【摘要】：热膨胀系数是材料热物理性能的重要参数.在温度剧烈变化服役环境下,航空航天工程中卫星、高超声速飞行器以及精密仪器仪表,微电子封装中大量结构的热变形需要精确的控制.发展热膨胀可调控的材料具有重要的科学意义和工程应用价值.轻质复合材料凭借其轻量化,力学性能优异且热膨胀系数可设计的优点已成为热变形控制领域的重要材料.本文首先概括了材料和结构的热变形控制在工程中的重要应用以及已有低、负膨胀均质材料的研究现状.其次详细介绍了层合、颗粒增强及拓扑优化复合材料的热膨胀设计研究成果.最后重点综述了轻质点阵复合材料的几何结构设计方法,热膨胀调控机理,制备工艺及实验表征的最新研究成果.
[Abstract]:Thermal expansion coefficient is an important parameter of material thermal physical properties.The thermal deformation of a large number of structures in aerospace engineering, such as satellites, hypersonic vehicles, precision instruments and microelectronic packaging, needs to be controlled precisely under the environment of drastic temperature change.It is of great scientific significance and engineering application value to develop materials that can be controlled by thermal expansion.Lightweight composites have become an important material in the field of thermal deformation control by virtue of their lightweight, excellent mechanical properties and designable thermal expansion coefficient.In this paper, the important applications of thermal deformation control of materials and structures in engineering and the research status of low and negative expansion homogeneous materials are summarized.Secondly, the thermal expansion design results of laminated, particle reinforced and topology optimized composites are introduced in detail.In the end, the latest research results of geometric structure design, thermal expansion control mechanism, preparation technology and experimental characterization of lightweight lattice composites are reviewed.
【作者单位】：湖南大学机械与运载工程学院工程力学系;北京大学工学院力学系;
【基金】：国家自然科学基金(11521202,11232001,11602081) 中国工程物理研究院重点学科项目资助
【分类号】：TB33

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