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Recent advances in the use of the impulse excitation technique for the characterisation of stiffness and damping of ceramics, ceramic coatings and ceramic laminates at elevated temperature

机译：利用脉冲激励技术的最新进展，以在升高温度下静脉晶体，陶瓷涂层和陶瓷层压板表征静脉凝固技术

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In this paper, recent advances in the impulse excitation technique (IET) are presented. IET is based on the frequency analysis of the resonant vibration of a gently struck test sample. IET has become a widely accepted standard method for the determination of accurate stiffness and damping values for monolithic materials. The non-destructive, non-contacting character of the technique has made it possible to implement IET in high temperature furnaces. Results are shown from tests on SiC samples up to 1450°C. In addition, two new developments are reported. First, the measurement of the stiffness of small disk-shaped samples is discussed. A solution for the suspension of small disk samples in furnaces will be demonstrated. Further, the use of the technique for the investigation of layered materials will be discussed. The elastic properties of a symmetrically applied coating (coating/substrate/coating) can be deduced from the flexure resonance frequency of the composite body, given the properties of the substrate. Similar analytic solutions exist for multilayer systems composed of two materials, involving the flexure as well as the longitudinal resonance frequencies. An example will be shown of a A1_2O_3-Y-TZP/Y-TZP laminate consisting of 9 layers.

机译：本文提出了脉冲励磁技术（IET）的最新进展。 IET基于轻微击中试样的谐振振动的频率分析。 IET已成为一种广泛接受的标准方法，用于确定整体材料的精确刚度和阻尼值。该技术的非破坏性，非接触性能使得可以在高温炉中实现IET。结果显示从SIC样品上的测试，高达1450°C。此外，报告了两个新的发展。首先，讨论了小盘状样品的刚度的测量。将说明炉子中的小盘样品的悬浮液的解决方案。此外，将讨论用于研究层状材料的技术。考虑到基板的性质，可以从复合体的挠曲谐振频率推导出对称施加的涂覆涂层（涂层/基板/涂层）的弹性性质。对于由两种材料组成的多层系统存在类似的分析解决方案，涉及弯曲以及纵向谐振频率。将显示一个例子，其A1_2O_3-Y-TZP / Y-TZP层压板包括9层。

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《Conference exhibition of the European Ceramic Society》|2002年||共4页
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G. Roebben; O. Van der Biest;
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中图分类玻璃、陶瓷;
关键词
Impulse Excitation Technique (IET); elastic properties, internal friction, laminate;

机译：脉冲励磁技术（IET）;弹性性质;内部摩擦;层压板;

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1. Recent advances in the use of the impulse excitation technique for the characterisation of stiffness and damping of ceramics, ceramic coatings and ceramic laminates at elevated temperature [J] . G. Roebben, O. Van der Biest Key Engineering Materials . 2002,第期

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4. Recent advances in the use of the impulse excitation technique for the characterisation of stiffness and damping of ceramics, ceramic coatings and ceramic laminates at elevated temperature [C] . G. Roebben, O. Van der Biest Conference exhibition of the European Ceramic Society . 2002

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5. Dynamic mechanical properties of ceramics and ceramic composites at elevated temperatures. [D] . Yang, Shuo. 1995

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Recent advances in the use of the impulse excitation technique for the characterisation of stiffness and damping of ceramics, ceramic coatings and ceramic laminates at elevated temperature

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