1 Thomas E. Garner, Zirconium and Hafnium Minerals, from,
16 Timothy Adams, "Zirconium and Hafnium," from Mineral Facts and Problems, U.S. Bureau of Mines, 1985, pp. 941-956. A less complicated method may be found to separate hafnium from zirconium and to refine the hafnium. A new process is being developed where zirconium and hafnium are separat ed by fractional distillation of the zirconium,Titanium, Zirconium and Hafnium - ScienceDirect,Jan 01, 1997· Table 21.1 summarizes a number of properties of these elements. The difficulties in attaining high purity has led to frequent revision of the estimates of several of these properties. Each element has a number of naturally occurring isotopes and, in the case of zirconium and hafnium, the least abundant of these is radioactive, though with a very long half-life (96 40 Zr, 2.76%, 3.6 × 10 17 y,Properties and Uses of Titanium, Zirconium and Hafnium,,Zirconium is also used to make alloys with steel and a Zr/Nb alloy is an important superconductor. Furthermore, the uses of titanium, zirconium and hafnium have found application in the nuclear industry. For example, the very high absorption of thermal neutrons by Hafnium is turned to good use.