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室温下合成单晶刚玉的弹性常数

Elastic Constants of Synthetic Single Crystal Corundum at Room Temperature.

作者信息

Wachtman J B, Tefft W E, Lam D G, Stinchfield R P

出版信息

J Res Natl Bur Stand A Phys Chem. 1960 May-Jun;64A(3):213-228. doi: 10.6028/jres.064A.022. Epub 1960 Jun 1.

DOI:10.6028/jres.064A.022
PMID:32196188
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5287147/
Abstract

The six elastic constants (and six elastic compliances) of corundum were determined in the kilocycle per second frequency range by an accurate resonance method. The results were checked in the megacycle per second range with a less accurate, pulse velocity method. The elastic moduli for polycrystalline alumina calculated from the single crystal compliances determined by the resonance method are in good agreement with experimental values obtained on high density polycrystalline alumina. The variation of Young's modulus and of the shear modulus with orientation was calculated from the compliances and the results are shown graphically. The results of the present work do not agree well with previous work on single crystal sapphire. The specification of orientation and the theory used to calculate the elastic constants are given in detail to support the contention that the results of the present work are correct.

摘要

通过精确的共振法在每秒千周频率范围内测定了刚玉的六个弹性常数（以及六个弹性柔度）。用精度稍低的脉冲速度法在每秒兆周范围内对结果进行了核对。根据共振法测定的单晶柔度计算出的多晶氧化铝弹性模量与在高密度多晶氧化铝上获得的实验值吻合良好。根据柔度计算了杨氏模量和剪切模量随取向的变化，并以图形方式给出了结果。本研究的结果与先前关于单晶蓝宝石的研究结果不太一致。详细给出了取向规范和用于计算弹性常数的理论，以支持本研究结果正确这一论点。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bba/5287147/27746339e52b/jresv64an3p213_a1bf12.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bba/5287147/27746339e52b/jresv64an3p213_a1bf12.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bba/5287147/d98be388b2d3/jresv64an3p213_a1bf6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bba/5287147/ec4f31c49857/jresv64an3p213_a1bf7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bba/5287147/05dc1b0a8380/jresv64an3p213_a1bf8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bba/5287147/8a4260423623/jresv64an3p213_a1bf9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bba/5287147/15153c3452be/jresv64an3p213_a1bf10.jpg
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