据报导,美国加利福尼亚Ceracon有限公司成功地获得了全密实气相沉积包覆镍和铁的钨粉压制件。这种晶粒非常细的、尺寸小于5μm的钨制品的强度比用液相烧结和热等静压得到的普通压制件高得多。这被粉末是用化学气相沉积气化层方法包覆的。用固态动态压坯法,不但可以防止钨-钨颗粒的接融,而且还可减少裂纹的断裂路经。三点 It is reported that Ceracon Co., Ltd. of California, USA successfully obtained fully compacted tungsten powder pressed into nickel and iron by vapor deposition. The very fine grains of tungsten with a size of less than 5 μm are much stronger than conventional pressed parts obtained by liquid-phase sintering and hot isostatic pressing. This powder is coated by a chemical vapor deposition vaporization layer method. With the solid dynamic compaction method, not only to prevent the tungsten-tungsten particles, then melt, but also reduce the crack of the crack path. Three o’clock