2Szulc J. Improving the durability of the electrodes for an air-plasma cutting system using the diffusion-bonding process [J]. Journal of Materials Processing Technology, 1995, (54): 166.
3Yadav S, Ramesh K T. The mechanical behavior of polycrystalline hafnium: strain-rate and temperature dependence [J ]. Materials Science and Engineering, 1998, A246: 265.
