Density and specific heat of hafnium and hafnium alloys
Are you interested in the properties and application of hafnium alloy? Supplier Avlob offers to buy hafnium at a bargain price. We guarantee timely delivery of products to any specified address. Regular customers can take advantage of discount discounts. The price is the best in this segment.
Technical specifications
Hafnium is a refractory heavy metal. The thermal neutron capture cross section is about 100 barns, which is 2000 times greater than that of zirconium-0.2 barn, and therefore zirconium is used in nuclear boilers.
| Description | Value |
|---|---|
| Chemical symbol | Hf |
| Atomic (molar) mass g / mol | 178.49 |
| Density [g / cm3] | 13.31 |
| Melting point t ° C | 2233 ° С |
| Heat of melting kJ / mol | 25.1 |
| Thermal conductivity K [W / (m · K)] | 23 |
Thermophysical properties
The molar heat capacity of hafnium (the ratio of heat capacity to the amount of material) is 25.7 J / (K · mol). This is a physical quantity that is numerically equal to the amount of heat that must be transferred to one mole of a given substance in order to change its temperature by one. The molar heat capacity is usually denoted by the symbol 
| The amount of heat (heat energy) necessary for heating the substance by 1 degree. | Metal | t ° C | Units of measurement of specific heat. | The specific heat. |
| Coefficient «C» — Specific heat | Hf | 20 ° С | cal / (1 ° C) … |
0, 0352 |
Application
Adjusting rods of nuclear reactors. The low work function of electrons makes it possible to produce cathodes of electron guns and thermoemission efficient power generators from hafnium. Manufacture of electrodes intended for welding low-carbon steel in argon, in an atmosphere of CO 2 .
Delivery, price
Supplier Avlob offers to buy hafnium at an affordable price. The price is formed on the basis of European production standards. Supplier Avgloft offers to buy hafnium at the best price in bulk or at retail.