Apparatus for measuring elastic constants of single crystals by a resonance technique up to 1825 K
Apparatus for measuring elastic constants of single crystals by a resonance technique up to 1825 K
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DOI：
10.1063/1.1139677
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发表时间：
1988-08
影响因子：
1.6
通讯作者：
T. Goto;O. Anderson
中科院分区：
文献类型：
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作者：
T. Goto;O. Anderson
通过将矩形平行六面体试样夹在长而薄的氧化铝缓冲棒之间，即使在1800 K以上的温度下，我们也可以检测到试样的共振振动。这项新技术，结合计算矩形平行六面体试样的共振频谱的理论，使我们能够确定单晶材料的高温弹性特性。该装置的首次应用是测定单晶刚玉在1825k下的弹性刚度常数。
By holding the rectangular parallelepiped specimen between long, thin alumina buffer rods, we can detect the resonance vibration of a specimen even at temperatures above 1800 K. This new technique, in combination with the theory for the calculation of the resonance frequency spectrum of a rectangular parallelepiped specimen, enables us to determine the high‐temperature elastic properties of single‐crystal materials. The first application of this new device was to determine the elastic stiffness constants of single‐crystal corundum up to 1825 K.