Ultrasonic Buffer‐Rod Technique for the High‐Temperature Measurement of the Elastic Moduli of Short Specimens
Ultrasonic Buffer‐Rod Technique for the High‐Temperature Measurement of the Elastic Moduli of Short Specimens
复制标题
短试样弹性模量高温测量的超声波缓冲棒技术
DOI：
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发表时间：
1968
期刊：
影响因子：
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通讯作者：
A. Sather
中科院分区：
文献类型：
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作者：
A. Sather
本文介绍了一种利用超声波测量高温下短样品弹性模量的方法。使用缓冲棒技术，但声音从缓冲棒穿过界面传输到短样本，而无需使用耦合剂。样本具有延伸至真空炉的均匀热区的机加工指标区域。所需的信息取自索引区域。详细介绍了用于在缓冲器和样本之间实现足以传输大量超声波的机械结合的实验技术。该方法已成功应用于1150°C，并且具有高达2500°C的潜在应用。
This paper describes a method of measuring the elastic moduli of short specimens to very high temperatures by the use of ultrasonics. A buffer‐rod technique is used, but the sound is transmitted from the buffer rod to the short specimen across an interface without the use of a couplant. The specimen has a machined index region that extends into the uniform hot zone of a vacuum furnace. The required information is taken from the index region. The experimental technique used to achieve a mechanical bond between the buffer and the specimen that is sufficient to transmit a considerable quantity of ultrasound is detailed. This method has been successfully used to 1150°C, and has potential application up to 2500°C.