对具有氢脆性的金属,如钛、锆、铪,通常采用氢化——脱氢法制取其粉末。此法是先使金属氢化,得到脆性氢化物,将其破碎成粉末,然后真空脱氢制得金属粉末。采用这种方法,粉末是由外部供氢氢化的,尽管经过净化处理,但还是不很纯,含有微量水分和其它 Hydrogen embrittlement of the metal, such as titanium, zirconium, hafnium, usually by hydrogenation - dehydrogenation Preparation of its powder. This method is to make the metal hydrogenation, to obtain a brittle hydride, crushed into powder, and then vacuum dehydrogenation of metal powder. Using this method, the powder is hydrogenated from the outside for hydrogenation, and although it is purified, it is not very pure and contains traces of moisture and other