论文部分内容阅读
一、扫描电镜应用简介 光学显微镜最大可以分辩直径2000(?)的颗粒,但不足以分辩直径小于1毫米的石英砂粒表面详细特征。地质、地理工作者希望能实现利用电子显微镜所具有的高度分辩率的特性来观察形体特征。目前穿透电子显微镜已能分辩1.5～2(?)。1951年Folk和Wea—
First, the application of SEM Introduction Optical microscope can distinguish the largest diameter of 2000 (?) Particles, but not enough to distinguish the diameter of less than 1 mm quartz sand surface detailed features. Geologists and geographers hope to observe the body features by using the high-resolution nature of electron microscopy. Currently penetrate the electron microscope has been able to distinguish 1.5 ~ 2 (?). 1951 Folk and Wea-