Investigation of grain boundary structure and grain boundary diffusion of ice using a laser interferometer

这项研究的目的是用激光干涉仪测定冰晶界厚度等，并测定细粒冰的物理性质。激光干涉仪只是对设备的稳定性进行了测试。通过冰的相变，成功地制备出了粒度为0.01 mm量级的冰样。采用细颗粒冰样进行了单轴蠕变试验。试验参数为温度和应力条件。在10%应变下的应变率比正常晶粒度的冰快100倍。最小应变率在冷温试验条件下不出现。它通常出现在几种存在的菌株周围。这些结果表明，晶界对冰的变形有很大影响。

Purpose of this study was determination of grain boundary thickness and etc. using a laser interferometer, and physical properties of ice with fine grain size. Laser interferometer was only carried out stability of equipment. Making of ice samples with fine grain size, 0.01mm order, were success by ice phase transition. Uniaxial creep tests were carried out using the fine grain ice samples. The temperature and stress conditions were test parameters. Strain rate at 10% strain is several 100 times faster than normal grain size ice. And minimum stain rate does not appear for cold temperature test conditions. It normally appears around several present of strain. These result suggest that grain boundary strongly affect to deformation of ice.