Dynamic elastic modulus and vibration damping behavior of porous silicon carbide ceramics at elevated temperatures

A. Wolfenden; C. B. Proffitt; M. Singh

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Dynamic elastic modulus and vibration damping behavior of porous silicon carbide ceramics at elevated temperatures

机译：多孔碳化硅陶瓷在高温下的动弹性模量和减振性能

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The piezoelectric ultrasonic composite oscillator technique (PUCOT) has been used to measure the Young's modulus, E, the mechanical damping, Q{sup}(-1), and the strain amplitude, ε, of a sintered silicon carbide containing pores (Hexoloy-SP). The silicon carbide material used in this study had at least 14 vol% porosity. Young's modulus was found to have a linear temperature dependence from room temperature to 740℃. The damping was near 10{sup}(-4) and was independent of strain amplitude above room temperature.

机译：压电超声复合振荡器技术（PUCOT）已用于测量含孔的烧结碳化硅的杨氏模量E，机械阻尼Q {sup}（-1）和应变幅度ε（Hexoloy- SP）。本研究中使用的碳化硅材料的孔隙率至少为14％（体积）。发现杨氏模量从室温到740℃具有线性温度依赖性。阻尼接近10 {sup}（-4），并且与室温以上的应变幅度无关。

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《Journal of Materials Engineering and Performance》 |1999年第5期|共3页
作者
A. Wolfenden; C. B. Proffitt; M. Singh;
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正文语种 eng
中图分类金属学与金属工艺;工程材料学;
关键词
Ceramics; Damping; High temperature; Silicon carbide; Young's modulus;

机译：陶瓷;阻尼;高温;碳化硅;杨氏模量;

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1. Dynamic elastic modulus and vibration damping behavior of porous silicon carbide ceramics at elevated temperatures [J] . A. Wolfenden, C. B. Proffitt, M. Singh Journal of Materials Engineering and Performance . 1999,第5期

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Dynamic elastic modulus and vibration damping behavior of porous silicon carbide ceramics at elevated temperatures

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