【摘要】 本文介绍了一种采用国产钨丝材料做成的电子显微镜用的直热式钨阴极——DWY阴极。简要地介绍了它的制备工艺及主要特性。实践表明DWY阴极是一种具有推广价值的适用型电子显微镜用阴极。更多还原

【Abstract】 A type of tungsten cathod used in electronmicroscope is introduced The name of the cathod is DWY cathod, which is made of Model WAL-2 tungsten. A brief introduction of preparative method and the main characteristics of this cathod is also given practising shows that this cathod is suitable for electronmicroscope and worth popularizing.更多还原