Single‐Crystal Elastic Properties of Aluminum Oxynitride (AlON) from Brillouin Scattering |
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| Authors: | Sikhanda Satapathy Muhtar Ahart Russell J Hemley Brian Schuster Petro Khoma |
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| Affiliation: | 1. Army Research Laboratory, Maryland;2. Geophysical Laboratory, Carnegie Institution of Washington, NW, Washington, District of Columbia |
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| Abstract: | The Brillouin light scattering technique was used to determine experimentally the three independent elastic constants of cubic aluminum oxynitride at the ambient condition. They are  , and  . Its bulk modulus is 221.2 GPa. The magnitude of Zener anisotropic ratio is 2.1 similar to other spinels. The anisotropic nature of the material is shown by a large variation in the Young's modulus and Poisson's ratio with crystallographic directions. The material was found to be auxetic in certain orientations. |
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