东方蝼蛄口器结构与表皮纳米力学性能研究

Microstructure and Nanoindentation Properties of Mouthparts of Oriental Mole Cricket

利用扫描电镜及能谱仪观察了东方蝼蛄口器表面及断面几何结构特征,对口器的表皮组成成分进行了分析,发现口器组织中含有多种金属元素和微量元素;东方蝼蛄口器具有中空结构,断面材料呈层状复合结构;采用切片法对东方蝼蛄口器进行了外形重构;利用纳米力学测试系统对东方蝼蛄口器表皮材料进行了测试,发现东方蝼蛄口器的弹性模量和纳米硬度较高。经比较发现,东方蝼蛄口器表皮的纳米硬度大于雄臭蜣螂唇基表皮的纳米硬度。

The surface and the section geometrical structure features and element of the mouthparts of the oriental mole cricket were examined by scanning electron microscopy（SEM） and energy spectrometer.The mouthparts cuticle contained many kinds of metallic elements and microelements.It was found that there existed a hollow structure in the mouthparts and the material of the section displayed sandwich structure.The structure of the mouthparts was modeled with the slice method.The hardness and elastic modulus of the mouthparts cuticle of the oriental mole cricket were obtained by nanomechanical test system.The results showed that the hardness and elastic modulus of the mouthparts cuticle material was high.It was found through comparison that the hardness of the mouthparts of the oriental mole cricket was higher than that of the female clypeus.