Elasticity of hexagonal boron nitride: Inelastic x-ray scattering measurements

作者：Alexey Bosak, J. Serrano, M. Krisch, Kenji Watanabe, Takashi Taniguchi, H. Kanda · 发表于：Physical Review B · 年份：2006 · DOI：10.1103/physrevb.73.041402 · 被引用次数：286 · 研究领域：Boron and Carbon Nanomaterials Research、Metal and Thin Film Mechanics、Graphene research and applications

The five independent elastic moduli of single-crystalline hexagonal boron nitride ($h$-BN) are determined using inelastic x-ray scattering. At room temperature the elastic moduli are in units of GPa ${\mathrm{C}}_{11}=811$, ${\mathrm{C}}_{12}=169$, ${\mathrm{C}}_{13}=0$, ${\mathrm{C}}_{33}=27.0$, and ${\mathrm{C}}_{44}=7.7$. Our experimental results are compared with predictions of ab initio calculations and previously reported incomplete datasets. These results provide solid background for further theoretical advances and quantitative input to model elasticity in boron nitride (BN) nanotubes.