Sponge hafnium ---- A brief introduction of crystalline hafnium materials
Hafnium, metal Hf, atomic number 72, atomic weight 178.49, is a lustrous silver-gray transition metal that occurs in nature in symbiont with zirconium. Hafnium has good oxidation resistance and corrosion resistance, and has a wide range of applications in aerospace, optical coating and nuclear industry. The hafnium sponge prepared by magnesium metal reduction has poor plasticity, uneven impurity content and high gas impurity content, which leads to the problems of overall alloy composition, uneven hardness and poor processing performance after direct use of electron beam melting in the later stage. At the same time, sponge hafnium is flammable, and it is not easy to preserve and transport in actual production. The content of crystalline hafnium metal impurities and gas impurities prepared by iodization method can be significantly reduced, which can effectively solve the above problems. At the same time, the finished product rate is higher in the late finishing process, and the overall performance of the finished product is more stable.
National hotline: