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Eu3+/Tb3+掺杂YAG-ZrO2纤维增强铝基复合材料的应力-应变光谱响应

孙卫民 张振鹏 寇生中 何玲 杨小凤

孙卫民, 张振鹏, 寇生中, 等. Eu3+/Tb3+掺杂YAG-ZrO2纤维增强铝基复合材料的应力-应变光谱响应[J]. 复合材料学报, 2025, 42(1): 7261-7271.
引用本文: 孙卫民, 张振鹏, 寇生中, 等. Eu3+/Tb3+掺杂YAG-ZrO2纤维增强铝基复合材料的应力-应变光谱响应[J]. 复合材料学报, 2025, 42(1): 7261-7271.
SUN Weimin, ZHANG Zhenpeng, KOU Shengzhong, et al. Stress-strain spectral response of Eu3+/Tb3+ doped YAG-ZrO2 fiber reinforced aluminum matrix composites[J]. Acta Materiae Compositae Sinica, 2025, 42(1): 7261-7271.
Citation: SUN Weimin, ZHANG Zhenpeng, KOU Shengzhong, et al. Stress-strain spectral response of Eu3+/Tb3+ doped YAG-ZrO2 fiber reinforced aluminum matrix composites[J]. Acta Materiae Compositae Sinica, 2025, 42(1): 7261-7271.

Eu3+/Tb3+掺杂YAG-ZrO2纤维增强铝基复合材料的应力-应变光谱响应

基金项目: 甘肃省科技重大专项(22ZD6GA008);中央引导地方科技发展资金项目(2023-0401--0076)
详细信息
    通讯作者:

    寇生中,博士,教授,博士生导师,研究方向为块体非晶合金材料的制备及力学性能、金属基复合材料、金属单晶体制备等方面的研究 E-mail: koushengzhong@163.com

  • 中图分类号: TB333

Stress-strain spectral response of Eu3+/Tb3+ doped YAG-ZrO2 fiber reinforced aluminum matrix composites

Funds: Gansu science and technology major special projects (22ZD6GA008); Central Guidance for Local Science and Technology Development Fund Project (2023-0401--0076)
  • 摘要: 复合材料的失效通常来自于外加载荷的周期循环过程中应力的积累与释放,因此,应力应变监测在纤维增强铝基复合材料的寿命评估和失效预警等方面具有非常重要的影响,但是复合材料变形区的应力应变很难直观的表征,利用稀土的荧光性能对应力-应变进行检测是一种可行的检测方法,其优点是稀土离子的荧光谱线丰富大多尖锐并且容易观测,而且大多对应力敏感性高。选取Eu3+和Tb3+作为发光中心,通过静电纺丝掺杂到YAG-ZrO2复合纤维中,以下简称(YAG:Eu3+-ZrO2)cf和(YAG:Tb3+-ZrO2)cf。通过热压烧结将(YAG:Eu3+/Tb3+-ZrO2)cf和2024铝粉复合,得到(YAG:Eu3+/Tb3+-ZrO2)cf增强铝基复合材料。利用动态拉伸荧光传感对(YAG:Eu3+/Tb3+-ZrO2)cf增强铝基复合材料在动态拉伸下的发光特性进行了表征,并通过发射光谱重心波长随应力的变化研究内应力的发光传感机制。结果表明,随着拉应力的增加,Eu3+5D07F1跃迁表现出有规律的红移,Tb3+5D4-7F5跃迁表现出有规律的蓝移,并且Eu3+表现出更高的传感精度。本文为基于Eu3+和Tb3+应力传感器材料的开发提供了思路。

     

  • 图  1  拉伸应力荧光测试装置示意图

    Figure  1.  The device schematic of fluorescence measurement for tensile stress.

    图  2  (a)不同Eu3+掺杂量的(YAG:Eu3+-ZrO2)cf XRD图谱;(b)不同Tb3+掺杂量的(YAG:Tb3+-ZrO2)cf XRD图谱

    Figure  2.  (a) (YAG:Eu3+-ZrO2)cf XRD spectra with different Eu3+ doping amounts; (b) (YAG:Tb3+-ZrO2)cf XRD spectra with different Tb3+ doping amounts

    图  3  (a)(b)(YAG:Tb3+/Eu3+-ZrO2)cf的SEM图像;(c)(d)基体和(YAG:Tb3+/Eu3+-ZrO2)cf/Al复合材料断口形貌图;(e)(f)(YAG:Tb3+/Eu3+-ZrO2)cf的EDS能谱图

    Figure  3.  (a)(b)SEM images of (YAG:Tb3+/Eu3+-ZrO2)cf;(c)(d)matrix and (YAG:Tb3+/Eu3+-ZrO2)cf aluminum matrix composite Fracture morphology;(e)(f)EDS spectra of (YAG:Tb3+/Eu3+-ZrO2)cf

    图  4  (a)不同掺杂量复合材料致密度变化曲线;(b)不同掺杂量复合材料硬度变化曲线

    Figure  4.  (a) Density curves of composites with different doping amounts;(b)Hardness curves of composites with different doping amounts

    图  5  (a)(b)(YAG:Eu3+-ZrO2)cf/Al复合材料激发和发射光谱;(c)(d)(YAG:Tb3+-ZrO2)cf/Al复合材料激发和发射光谱

    Figure  5.  (a)(b) (YAG:Eu3+-ZrO2)cf/Al composite excitation and emission spectra;(c)(d) (YAG:Tb3+-ZrO2)cf/Al composite excitation and emission spectra

    图  6  (YAG:Eu3+-ZrO2)cf/Al复合材料动态拉伸情况下的发射光谱变化(a)初始图;(b)归一化,插图为局部放大图

    Figure  6.  Emission spectrum changes of (YAG:Eu3+-ZrO2)cf/Al composites under dynamic stretching (a) initial map; (b) normalization, The inset image is a partial enlarged view

    图  7  (YAG:Eu3+-ZrO2)cf/Al复合材料重心波长随拉应力的变化

    Figure  7.  Variation of center of gravity wavelength with tensile stress in (YAG:Eu3+-ZrO2)cf/Al composites

    图  8  (YAG:Tb3+-ZrO2)cf/Al复合材料动态拉伸情况下的发射光谱变化(a)初始图;(b)归一化,插图为局部放大图

    Figure  8.  Emission spectrum changes of (YAG:Tb3+-ZrO2)cf/Al composites under dynamic stretching (a) initial map; (b) normalization, The inset image is a partial enlarged view

    图  9  (YAG:Tb3+-ZrO2)cf/Al复合材料重心波长随拉应力的变化

    Figure  9.  Variation of center of gravity wavelength with tensile stress in (YAG:Tb3+-ZrO2)cf/Al composites

    图  10  (YAG:Eu3+-ZrO2)cf/Al复合材料原位拉伸XRD图谱

    Figure  10.  In situ tensile XRD pattern of (YAG:Eu3+-ZrO2)cf/Al composites

    图  11  (YAG:Eu3+-ZrO2)cf/Al复合材料内应力随拉应力的变化

    Figure  11.  Variation of internal stress with tensile stress in (YAG:Eu3+-ZrO2)cf/Al composites

    表  1  2024铝合金粉的化学成分

    Table  1.   Chemical composition of 2024 Al alloy powder

    ElementCuMgFeSiMnZnOthersAl
    Content/wt%4.51.40.50.50.480.250.25Bal.
    下载: 导出CSV

    表  2  未掺杂Eu3+的YAG与8%Eu3+掺杂YAG的XRD数据

    Table  2.   XRD Data of YAG Undoped with Eu3+ and YAG Doped with 8% Eu3+


    sample
    crystal plane parameter
    (420)(521)(532)
    2θ/(°)d/nm2θ/(°)d/nm2θ/(°)d/nm
    YAG33.4161.202141.2491.202446.4891.2024
    YAG:Eu3+ (8%)33.3571.204841.1591.204546.4091.2037
    Notes:2θ is the incident angle of X-ray diffraction of the material; d is the crystal plane spacing.
    下载: 导出CSV

    表  3  Al基(111)晶面的弹性常数和泊松比

    Table  3.   Elastic constants and Poisson's ratios of Al-based (111) planes

    phasecrystal planeνE
    Al1110.1903544.465
    Notes:ν and E are the elastic constants and poisson's ratios of the Al (111) Plane.
    下载: 导出CSV

    表  4  (YAG:Eu3+-ZrO2)cf/Al复合材料内应力计算结果

    Table  4.   Calculation Results of Internal Stress of (YAG:Eu3+-ZrO2)cf/Al Composites

    Tensile stress (MPa)2θ/(°)Β/(°)b/(°)β/radεm×10-3σ/MPa
    50 MPa41.26080.75770.0960.01157.6689340.9976
    100 MPa41.05340.76600.0960.01177.8079347.1783
    150 MPa40.99410.77390.0960.01187.9125351.8293
    200 MPa40.39190.78100.0970.01198.1134360.4623
    250 MPa40.34330.79930.0970.01228.3414370.9003
    Notes:2θ and B are the incident angles and half-width of (YAG:Eu3+ -ZrO2)cf/Al composite X-ray diffraction; b is the width of the instrument slit; β is the result of deducting the slit width; εm and σ are the microscopic strain and internal stress of the composite, respectively.
    下载: 导出CSV
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  • 收稿日期:  2024-03-12
  • 修回日期:  2024-04-26
  • 录用日期:  2024-05-13
  • 网络出版日期:  2024-06-13
  • 刊出日期:  2025-01-15

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