1、 Atomic energy industry

1. Nuclear reactor control rod

Due to its large thermal neutron absorption cross section, it is used to regulate nuclear reaction rates and is the core material of nuclear power plant control systems.

2、 Aerospace and Military Industry

1. High temperature alloy additives: added to tungsten, molybdenum, and tantalum alloys to enhance creep resistance and high temperature strength.

Typical applications:

Hafnium niobium alloy: used for lunar rocket nozzles;

Tantalum tungsten alloy: used as a protective layer material for spacecraft re-entry into the atmosphere.

2. Propellant and ignition device

Hafnium powder is used as rocket propellant, and hafnium alloy electrodes are used for high-voltage discharge tubes.

3、 Electronic materials

1. High end electronic devices

X-ray tube cathode: due to its excellent electron emission performance;

New generation chip material: hafnium oxide has a high dielectric constant and is suitable for microelectronic devices and high-efficiency photovoltaic cells.

4、 Chemical and Special Materials

1. Absorbent: Absorbs impurities such as oxygen and nitrogen, used in high-purity gas systems.

2. Corrosion resistant coating: Hafnium carbide has high hardness and a melting point of over 3900 ° C, and is used as an additive for hard alloys.

3. Hydraulic oil stabilizer: enhances the volatility resistance of hydraulic oil in high-risk environments.

5、 Other fields

Lamp industry: filament materials for incandescent lamps;

Corrosion resistant components: acid resistant components in chemical equipment.