PRODUCTION OF THE POWDERS OF SOME OF THE REACTIVE METALS

Methods of producing the powders of beryllium, zirconium, titanium, tantalum, and niobium are outlined. The purity level, particle size, storage, and appropriate comments are given corresponding to each production method. The most common impurities are oxygen, nitrogen, hydrogen, and carbon, and their importance depends on the purpose for which the powder is to be used. (B.O.G.)