Hafnium sponge is a highly porous, metallic material made from hafnium metal. The sponge-like structure of this material is achieved through a process of powder metallurgy, in which hafnium powder is compacted into a shape and then heated to a high temperature in a vacuum furnace.
During the heating process, the hafnium powder begins to sinter and fuse together, forming a solid, porous mass with a high surface area. The resulting hafnium sponge has a unique combination of properties, including high strength, good ductility, and excellent corrosion resistance.
Hafnium sponge is often used as a starting material for the production of other hafnium products, such as hafnium rods, sheets, and wires. This is because the porous structure of the sponge allows it to be easily shaped and molded into a variety of forms.
In addition, hafnium sponge is highly valued in the nuclear industry due to its low neutron absorption cross-section. This makes it ideal for use in control rods and other components in nuclear reactors.
Overall, hafnium sponge is a versatile and important material with a range of industrial applications. Its unique properties make it an essential component in many high-tech industries, including aerospace, electronics, and nuclear power generation.
Hafnium Sponge Properties (Theoretical)
|Solubility in H2O||N/A|
|Electrical Resistivity||35.1 microhm-cm @ 25°C|
|Heat of Vaporization||155 K-Cal/gm atom at 4602°C|
|Specific Heat||0.035 Cal/g/K @ 25 °C|
|Thermal Conductivity||0.230 W/cm/K @ 298.2 K|
|Thermal Expansion||(25 °C) 5.9 µm·m-1·K-1|
|Vickers Hardness||1760 MPa|
|Young's Modulus||78 GPa|
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