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三维网络Ti2AlC/Mg基复合材料制备及阻尼性能

肖易, 肖华强, 何佳容, 冯进宇, 游川川, 赵鑫鑫

肖易, 肖华强, 何佳容, 冯进宇, 游川川, 赵鑫鑫. 三维网络Ti2AlC/Mg基复合材料制备及阻尼性能[J]. 粉末冶金技术, 2023, 41(4): 372-377, 384. DOI: 10.19591/j.cnki.cn11-1974/tf.2020120017
引用本文: 肖易, 肖华强, 何佳容, 冯进宇, 游川川, 赵鑫鑫. 三维网络Ti2AlC/Mg基复合材料制备及阻尼性能[J]. 粉末冶金技术, 2023, 41(4): 372-377, 384. DOI: 10.19591/j.cnki.cn11-1974/tf.2020120017
XIAO Yi, XIAO Huaqiang, HE Jiarong, FENG Jinyu, YOU Chuanchuan, ZHAO Xinxin. Preparation and damping capacity of three-dimensional network Ti2AlC/Mg matrix composites[J]. Powder Metallurgy Technology, 2023, 41(4): 372-377, 384. DOI: 10.19591/j.cnki.cn11-1974/tf.2020120017
Citation: XIAO Yi, XIAO Huaqiang, HE Jiarong, FENG Jinyu, YOU Chuanchuan, ZHAO Xinxin. Preparation and damping capacity of three-dimensional network Ti2AlC/Mg matrix composites[J]. Powder Metallurgy Technology, 2023, 41(4): 372-377, 384. DOI: 10.19591/j.cnki.cn11-1974/tf.2020120017

三维网络Ti2AlC/Mg基复合材料制备及阻尼性能

基金项目: 国家自然科学基金资助项目(51605106)
详细信息
    通讯作者:

    肖华强: E-mail: xhq-314@163.com

  • 中图分类号: TB333

Preparation and damping capacity of three-dimensional network Ti2AlC/Mg matrix composites

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  • 摘要:

    采用前驱体法制备Ti2AlC多孔陶瓷预制体,通过辅助压力浸渗工艺制备出组织致密的三维网络相互贯通的Ti2AlC/Mg基复合材料。利用扫描电镜和X射线衍射仪分析复合材料的微观组织和物相组成,使用机械振动分析仪测试复合材料阻尼性能。结果表明,复合材料具有宏观上及微观上双尺度的三维网络结构。恒定温度条件下,复合材料在1 Hz和10 Hz测试条件下的最高损耗正切值分别为0.13和0.15,相比于基体AZ91D镁合金分别提高了约30%和67%,其阻尼表现增强。恒定应变条件下,在最高测试温度时,复合材料出现最大损耗正切值。两种测试条件下,复合材料存储模量均高于基体AZ91D镁合金。从内耗值-存储模量二者平衡的角度来看,复合材料不仅具有更宽的应用温度范围,也具有更好的阻尼-强度平衡性。

    Abstract:

    The Ti2AlC porous ceramic preforms were prepared by precursor method in this paper, and the Ti2AlC/Mg matrix composites with the dense three-dimensional network structure were prepared by auxiliary pressure infiltration process. The microstructure and phase composition of the composites were investigated by scanning electron microscope (SEM) and X-ray diffractometer (XRD), and the damping performance of the composites was tested by vibration analyzer. The results show that, the composites have the two-scale three-dimensional network structure at the macro and micro levels. At the constant temperature, the maximum loss tangent values of the composites are 0.13 and 0.15 at 1 Hz and 10 Hz, respectively, increasing by about 30% and 67% compared with AZ91D, the damping performance is enhanced. Under the constant strain, the composites have the maximum loss tangent value at the highest test temperature. In the two test conditions, both of the storage modulus is higher than that of AZ91D. From the view of the balance between internal friction and storage modulus, the composites not only have the wider application temperature range, but also have the better damping-strength balance.

  • 图  1   多孔陶瓷预制体的宏观结构

    Figure  1.   Macrostructure of the porous ceramic preform

    图  2   Ti2AlC多孔陶瓷预制体骨架微观结构:(a)低倍区;(b)高倍区

    Figure  2.   Microstructures of the Ti2AlC porous ceramic preform skeletons: (a) low magnification; (b) high magnification

    图  3   Ti2AlC多孔陶瓷预制体骨架断口显微形貌:(a)低倍;(b)高倍

    Figure  3.   Fracture microstructures of the Ti2AlC porous ceramic preform skeletons: (a) low magnification; (b) high magnification

    图  4   三维网络Ti2AlC/Mg基复合材料X射线衍射图谱

    Figure  4.   XRD patterns of the three-dimensional network Ti2AlC/Mg matrix composites

    图  5   压力浸渗所得试样宏观形貌

    Figure  5.   Macro morphology of the samples by pressure infiltration

    图  6   压力浸渗方法制备Ti2AlC/AZ91D复合材料陶瓷与基体结合区背散射电子显微形貌:(a)低倍;(b)高倍

    Figure  6.   Backscattered electron images of the Ti2AlC/AZ91D composites at the ceramic and matrix bonding prepared by pressure infiltration method: (a) low magnification; (b) high magnification

    图  7   AZ91D和Ti2AlC/Mg基复合材料阻尼-应变谱曲线:(a)1 Hz;(b)10 Hz

    Figure  7.   Damping-strain spectrum curves of AZ91D and Ti2AlC/Mg matrix composites: (a) 1 Hz; (b) 10 Hz

    图  8   AZ91D(a)和Ti2AlC/Mg基复合材料(b)阻尼-温度谱曲线

    Figure  8.   Damping-temperature spectrum curves of AZ91D (a) and Ti2AlC/Mg matrix composites (b)

    表  1   原料粉末基本物性

    Table  1   Physical properties of the raw material powders

    材料质量分数 / %粒径 / μm生产厂家
    Ti2AlC90%2~75北京福斯曼科技有限公司
    Ti99%2~75北京福斯曼科技有限公司
    下载: 导出CSV

    表  2   实验粉末的用量(质量分数)

    Table  2   Dosage of the experimental powders %

    Ti2AlC粉 Ti粉 碱性硅溶胶
    (陶瓷粉末)
    羧甲基纤维素
    (陶瓷粉末)
    聚丙烯酰胺
    (陶瓷粉末)
    90.0 10.0 2.0 2.0 1.2
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-06-09
  • 网络出版日期:  2021-07-04
  • 刊出日期:  2023-08-27

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